Hecho general: 19798 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Hecho matemático: 19798 is a boring number.
Trivia: 19798 is a boring number.
Fecha histórica: March 15th is the day in 1916 that President Woodrow Wilson sends 4,800 United States troops over the U.S.-Mexico border to pursue Pancho Villa.