General fact: 47937 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Mathematical fact: 47937 is an unremarkable number.
Trivia: 47937 is an uninteresting number.
Historical date: March 31st is the day in 1918 that Massacre of ethnic Azerbaijanis is committed by allied armed groups of Armenian Revolutionary Federation and Bolsheviks.