Hecho general: 2623 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Hecho matemático: 2623 is a boring number.
Trivia: 2623 is an unremarkable number.
Fecha histórica: March 7th is the day in 1989 that Iran and the United Kingdom break diplomatic relations after a row over Salman Rushdie and his controversial novel.