90204956 has 12 divisors (see below), whose sum is σ = 159486768. Its totient is φ = 44637312.

The previous prime is 90204953. The next prime is 90204967. The reversal of 90204956 is 65940209.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90204953) 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, 115856 + ... + 116631.

It is an arithmetic number, because the mean of its divisors is an integer number (13290564).

Almost surely, 2^90204956 is an apocalyptic number.

It is an amenable number.

90204956 is a deficient number, since it is larger than the sum of its proper divisors (69281812).

90204956 is a wasteful number, since it uses less digits than its factorization.

90204956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 232588 (or 232586 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 35.

The square root of 90204956 is about 9497.6289672739. The cubic root of 90204956 is about 448.4803985257.

The spelling of 90204956 in words is "ninety million, two hundred four thousand, nine hundred fifty-six".