Fatto matematico: 67644 is an unremarkable number.
Trivia: 67644 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Data storica: March 14th is the day in 1381 that Chioggia concludes an alliance with Zadar and Trogir against Venice, which becomes changed in 1412 in Šibenik.