90475692 has 12 divisors (see below), whose sum is σ = 211109976. Its totient is φ = 30158560.

The previous prime is 90475691. The next prime is 90475703. The reversal of 90475692 is 29657409.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (90475691) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3769809 + ... + 3769832.

It is an arithmetic number, because the mean of its divisors is an integer number (17592498).

Almost surely, 2^90475692 is an apocalyptic number.

It is an amenable number.

90475692 is an abundant number, since it is smaller than the sum of its proper divisors (120634284).

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

90475692 is a wasteful number, since it uses less digits than its factorization.

90475692 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7539648 (or 7539646 counting only the distinct ones).

The product of its (nonzero) digits is 136080, while the sum is 42.

The square root of 90475692 is about 9511.8711093034. The cubic root of 90475692 is about 448.9286315370.

The spelling of 90475692 in words is "ninety million, four hundred seventy-five thousand, six hundred ninety-two".