general_fact: 87287 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
math_fact: 87287 is an unremarkable number.
trivia: 87287 is an uninteresting number.
historical_date: December 25th is the day in 1946 that the first in Europe artificial, self-sustaining nuclear chain reaction is initiated within Soviet nuclear reactor F-1.