general_fact: 20287 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
math_fact: 20287 is an unremarkable number.
trivia: 20287 is a boring number.
historical_date: July 17th is the day in 1918 that the RMS Carpathia, the ship that rescued the 705 survivors from the RMS Titanic, is sunk off Ireland by the German SM U-55; 5 lives are lost.