89790992 has 10 divisors (see below), whose sum is σ = 173970078. Its totient is φ = 44895488.

The previous prime is 89790959. The next prime is 89790997. The reversal of 89790992 is 29909798.

It can be written as a sum of positive squares in only one way, i.e., 65545216 + 24245776 = 8096^2 + 4924^2 .

It is not an unprimeable number, because it can be changed into a prime (89790997) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2805953 + ... + 2805984.

Almost surely, 2^89790992 is an apocalyptic number.

It is an amenable number.

89790992 is a deficient number, since it is larger than the sum of its proper divisors (84179086).

89790992 is a wasteful number, since it uses less digits than its factorization.

89790992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5611945 (or 5611939 counting only the distinct ones).

The product of its (nonzero) digits is 734832, while the sum is 53.

The square root of 89790992 is about 9475.8108887841. The cubic root of 89790992 is about 447.7932985654.

The spelling of 89790992 in words is "eighty-nine million, seven hundred ninety thousand, nine hundred ninety-two".