Fatto generale: 9949 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fatto matematico: 9949 is an uninteresting number.
Trivia: 9949 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Data storica: March 28th is the day in 845 that Paris is sacked by Viking raiders, probably under Ragnar Lodbrok, who collects a huge ransom in exchange for leaving.