89731956 has 24 divisors (see below), whose sum is σ = 215034400. Its totient is φ = 29102112.

The previous prime is 89731951. The next prime is 89731963. The reversal of 89731956 is 65913798.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89731951) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 100606 + ... + 101493.

Almost surely, 2^89731956 is an apocalyptic number.

It is an amenable number.

89731956 is an abundant number, since it is smaller than the sum of its proper divisors (125302444).

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

89731956 is a wasteful number, since it uses less digits than its factorization.

89731956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202143 (or 202141 counting only the distinct ones).

The product of its digits is 408240, while the sum is 48.

The square root of 89731956 is about 9472.6952869814. The cubic root of 89731956 is about 447.6951383067.

The spelling of 89731956 in words is "eighty-nine million, seven hundred thirty-one thousand, nine hundred fifty-six".