Fatto generale: 6749 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fatto matematico: 6749 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Trivia: 6749 is an uninteresting number.
Data storica: June 23rd is the day in 1938 that the Civil Aeronautics Act is signed into law, forming the Civil Aeronautics Authority in the United States.