Fatto generale: 4998 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fatto matematico: 4998 is an uninteresting number.
Trivia: 4998 is a boring number.
Data storica: September 6th is the day in 1870 that Louisa Ann Swain of Laramie, Wyoming becomes the first woman in the United States to cast a vote legally after 1807.