90568920 has 64 divisors (see below), whose sum is σ = 292612320. Its totient is φ = 22293504.

The previous prime is 90568903. The next prime is 90568921. The reversal of 90568920 is 2986509.

It is a happy number.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90568921) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27469 + ... + 30588.

Almost surely, 2^90568920 is an apocalyptic number.

It is an amenable number.

90568920 is an abundant number, since it is smaller than the sum of its proper divisors (202043400).

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

90568920 is a wasteful number, since it uses less digits than its factorization.

90568920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58084 (or 58080 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 39.

The square root of 90568920 is about 9516.7704606132. The cubic root of 90568920 is about 449.0827736808.

The spelling of 90568920 in words is "ninety million, five hundred sixty-eight thousand, nine hundred twenty".