Hecho general: 2297 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Hecho matemático: 2297 is the number of inequivalent binary linear codes of length 10.
Trivia: 2297 is a boring number.
Fecha histórica: April 15th is the day in 1955 that McDonald's restaurant dates its founding to the opening of a franchised restaurant by Ray Kroc, in Des Plaines, Illinois.