90907475 has 12 divisors (see below), whose sum is σ = 112857360. Its totient is φ = 72640800.

The previous prime is 90907463. The next prime is 90907501. The reversal of 90907475 is 57470909.

It is a happy number.

It is not a de Polignac number, because 90907475 - 2⁴ = 90907459 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27986 + ... + 31064.

It is an arithmetic number, because the mean of its divisors is an integer number (9404780).

Almost surely, 2^90907475 is an apocalyptic number.

90907475 is a deficient number, since it is larger than the sum of its proper divisors (21949885).

90907475 is a wasteful number, since it uses less digits than its factorization.

90907475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4270 (or 4265 counting only the distinct ones).

The product of its (nonzero) digits is 79380, while the sum is 41.

The square root of 90907475 is about 9534.5411530917. The cubic root of 90907475 is about 449.6416488643.

The spelling of 90907475 in words is "ninety million, nine hundred seven thousand, four hundred seventy-five".