Hecho general: 9453 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Hecho matemático: 9453 is an uninteresting number.
Trivia: 9453 is an uninteresting number.
Fecha histórica: November 17th is the day in 1953 that the remaining human inhabitants of the Blasket Islands, Kerry, Ireland are evacuated to the mainland.