general_fact: 87319 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
math_fact: 87319 is an uninteresting number.
trivia: 87319 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
historical_date: January 26th is the day in 1905 that the world's largest diamond ever, the Cullinan weighing 3,106.75 carats (0.62135 kg), is found at the Premier Mine near Pretoria in South Africa.