Hecho general: 787 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Hecho matemático: 787 is a palindrome in base 3 and in base 10.
Trivia: 787 is an unremarkable number.
Fecha histórica: February 25th is the day in 1928 that Charles Jenkins Laboratories of Washington, D.C. becomes the first holder of a television license from the Federal Radio Commission.