Fatto matematico: 4223 is the maximum number of 12^{th} powers needed to sum to any number.
Trivia: 4223 is an uninteresting number.
Data storica: July 24th is the day in 1935 that the dust bowl heat wave reaches its peak, sending temperatures to 109°F (44°C) in Chicago and 104°F (40°C) in Milwaukee, Wisconsin.