87 may refer to:
*
87 (number)
87 (eighty-seven) is the natural number following 86 (number), 86 and preceding 88 (number), 88.
In mathematics
87 is:
* the sum of the squares of the first four primes (87 = 22 + 32 + 52 + 72).
* the sum of the sums of the divisors of the first ...
* one of the years
87 BC
__NOTOC__
Year 87 BC was a year of the pre-Julian Roman calendar. At the time it was known as the Year of the Consulship of Octavius and Cinna/Merula (or, less frequently, year 667 ''Ab urbe condita'') and the Second Year of Houyuan. The denomi ...
,
AD 87
AD 87 ( LXXXVII) was a common year starting on Monday of the Julian calendar. At the time, it was known as the Year of the Consulship of Augustus and Saturninus (or, less frequently, year 840 ''Ab urbe condita''). The denomination AD 87 for thi ...
,
1987
Events January
* January 1 – Bolivia reintroduces the Boliviano currency.
* January 2 – Chadian–Libyan conflict – Battle of Fada: The Military of Chad, Chadian army destroys a Libyan armoured brigade.
* January 3 – Afghan leader ...
,
2087
In contemporary history, the third millennium is the current millennium in the ''Anno Domini'' or Common Era, under the Gregorian calendar. It began on 1 January 2001 ( MMI) and will end on 31 December 3000 ( MMM), spanning the 21st to 30t ...
* Atomic number 87,
francium
Francium is a chemical element; it has symbol Fr and atomic number 87. It is extremely radioactive; its most stable isotope, francium-223 (originally called '' actinium K'' after the natural decay chain in which it appears), has a half-l ...
*
Intel 8087
The Intel 8087, announced in 1980, was the first floating-point coprocessor for the 8086 line of microprocessors. The purpose of the chip was to speed up floating-point arithmetic operations, such as addition, subtraction, multiplication, div ...
, a floating-point coprocessor
* 87; Common
gasoline
Gasoline ( North American English) or petrol ( Commonwealth English) is a petrochemical product characterized as a transparent, yellowish, and flammable liquid normally used as a fuel for spark-ignited internal combustion engines. When for ...
rating
*
87 Sylvia
87 Sylvia is one of the largest asteroids (approximately tied for 7th place, to within measurement uncertainties). It is the parent body of the Sylvia family and member of Cybele group located beyond the main asteroid belt (see minor-planet ...
, a large asteroid
*
Tatra 87
The Tatra 87 (T87) is a car built by Czechoslovak manufacturer Tatra from 1936 to 1950. It was powered by a rear-mounted 2.9-litre air-cooled 90-degree overhead cam V8 engine that produced 85 horsepower and could drive the car at nearly . It is ...
, a luxury car
See also
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List of highways numbered
All lists of highways beginning with a number.
{{List of highways numbered index
Lists of transport lists ...
{{Numberdis