Hecho general: 61634 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Hecho matemático: 61634 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Trivia: 61634 is a boring number.
Fecha histórica: September 29th is the day in 1227 that Frederick II, Holy Roman Emperor, is excommunicated by Pope Gregory IX for his failure to participate in the Crusades.