general_fact: 47842 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
math_fact: 47842 is an unremarkable number.
trivia: 47842 is an uninteresting number.
historical_date: December 26th is the day in 2003 that a magnitude 6.6 earthquake devastates southeast Iranian city of Bam, killing tens of thousands and destroying the citadel of Arg-é Bam.