89531244 has 60 divisors (see below), whose sum is σ = 255340008. Its totient is φ = 27129600.

The previous prime is 89531243. The next prime is 89531251. The reversal of 89531244 is 44213598.

89531244 is a `hidden beast` number, since 89 + 531 + 2 + 44 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 89531199 and 89531208.

It is not an unprimeable number, because it can be changed into a prime (89531243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 8997 + ... + 16124.

Almost surely, 2^89531244 is an apocalyptic number.

It is an amenable number.

89531244 is an abundant number, since it is smaller than the sum of its proper divisors (165808764).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

89531244 is a wasteful number, since it uses less digits than its factorization.

89531244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25148 (or 25137 counting only the distinct ones).

The product of its digits is 34560, while the sum is 36.

The square root of 89531244 is about 9462.0951168333. The cubic root of 89531244 is about 447.3610883509.

The spelling of 89531244 in words is "eighty-nine million, five hundred thirty-one thousand, two hundred forty-four".