Fatto generale: 8422 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fatto matematico: 8422 is an uninteresting number.
Trivia: 8422 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Data storica: January 21st is the day in 1954 that the first nuclear-powered submarine, the USS Nautilus, is launched in Groton, Connecticut by Mamie Eisenhower, the First Lady of the United States.