90566928 has 30 divisors (see below), whose sum is σ = 253462014. Its totient is φ = 30188928.

The previous prime is 90566921. The next prime is 90566929. The reversal of 90566928 is 82966509.

It can be written as a sum of positive squares in only one way, i.e., 73822464 + 16744464 = 8592^2 + 4092^2 .

It is not an unprimeable number, because it can be changed into a prime (90566921) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 314325 + ... + 314612.

Almost surely, 2^90566928 is an apocalyptic number.

It is an amenable number.

90566928 is an abundant number, since it is smaller than the sum of its proper divisors (162895086).

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

90566928 is a wasteful number, since it uses less digits than its factorization.

90566928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 628951 (or 628942 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 45.

The square root of 90566928 is about 9516.6658026853. The cubic root of 90566928 is about 449.0794812363.

The spelling of 90566928 in words is "ninety million, five hundred sixty-six thousand, nine hundred twenty-eight".