90565968 has 40 divisors (see below), whose sum is σ = 237805216. Its totient is φ = 29692800.

The previous prime is 90565961. The next prime is 90565991. The reversal of 90565968 is 86956509.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90565961) 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, 12538 + ... + 18393.

Almost surely, 2^90565968 is an apocalyptic number.

It is an amenable number.

90565968 is an abundant number, since it is smaller than the sum of its proper divisors (147239248).

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

90565968 is a wasteful number, since it uses less digits than its factorization.

90565968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31003 (or 30997 counting only the distinct ones).

The product of its (nonzero) digits is 583200, while the sum is 48.

The square root of 90565968 is about 9516.6153647187. The cubic root of 90565968 is about 449.0778944988.

The spelling of 90565968 in words is "ninety million, five hundred sixty-five thousand, nine hundred sixty-eight".