Fatto matematico: 6297 is a value of n for which n and 5n together use each digit 1-9 exactly once.
Trivia: 6297 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Data storica: March 28th is the day in 2005 that the 2005 Sumatra earthquake rocks Indonesia, and at magnitude 8.7 is the fourth strongest earthquake since 1965.