90538956 has 36 divisors (see below), whose sum is σ = 230412000. Its totient is φ = 29975328.

The previous prime is 90538949. The next prime is 90538979. The reversal of 90538956 is 65983509.

It is a tau number, because it is divible by the number of its divisors (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3076 + ... + 13803.

Almost surely, 2^90538956 is an apocalyptic number.

It is an amenable number.

90538956 is an abundant number, since it is smaller than the sum of its proper divisors (139873044).

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

90538956 is a wasteful number, since it uses less digits than its factorization.

90538956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17038 (or 17033 counting only the distinct ones).

The product of its (nonzero) digits is 291600, while the sum is 45.

The square root of 90538956 is about 9515.1960568346. The cubic root of 90538956 is about 449.0332430748.

The spelling of 90538956 in words is "ninety million, five hundred thirty-eight thousand, nine hundred fifty-six".