Fatto generale: 68731 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fatto matematico: 68731 is an uninteresting number.
Trivia: 68731 is a boring number.
Data storica: March 5th is the day in 1850 that the Britannia Bridge across the Menai Strait between the Isle of Anglesey and the mainland of Wales is opened.