Hecho general: 9217 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Hecho matemático: 9217 is the total number of digits of all binary numbers of length 1-10.
Trivia: 9217 is a boring number.
Fecha histórica: March 26th is the day in 1999 that a jury in Michigan finds Dr. Jack Kevorkian guilty of second-degree murder for administering a lethal injection to a terminally ill man.