Subtracting from 88889 its product of digits (36864), we obtain a palindrome (52025).
Subtracting 88889 from its reverse (98888), we obtain a palindrome (9999).
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.
It is a cyclic number.
It is an Ulam number.
It is a Duffinian number.
It is a plaindrome in base 10.
It is a congruent number.
288889 is an apocalyptic number.
It is an amenable number.
88889 is a wasteful number, since it uses less digits than its factorization.
88889 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 966.
The square root of 88889 is about 298.1425833389. The cubic root of 88889 is about 44.6288819342.
The spelling of 88889 in words is "eighty-eight thousand, eight hundred eighty-nine".