Fatto generale: 1027 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fatto matematico: 1027 is the sum of the squares of the first 8 primes.
Trivia: 1027 is an unremarkable number.
Data storica: October 23rd is the day in 1861 that U.S. President Abraham Lincoln suspends the writ of habeas corpus in Washington, D.C., for all military-related cases.