Fatto generale: 28033 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fatto matematico: 28033 is an unremarkable number.
Trivia: 28033 is an uninteresting number.
Data storica: September 30th is the day in 1791 that the National Constituent Assembly in Paris is dissolved; Parisians hail Maximilien Robespierre and Jérôme Pétion as "incorruptible patriots".