Fatto generale: 8371 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fatto matematico: 8371 is an uninteresting number.
Trivia: 8371 is an unremarkable number.
Data storica: December 1st is the day in 1960 that Paul McCartney and Pete Best are arrested then deported from Hamburg, Germany, after accusations of attempted arson.