90500900 has 36 divisors (see below), whose sum is σ = 224443968. Its totient is φ = 31028640.

The previous prime is 90500887. The next prime is 90500941. The reversal of 90500900 is 900509.

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, 63944 + ... + 65343.

Almost surely, 2^90500900 is an apocalyptic number.

It is an amenable number.

90500900 is an abundant number, since it is smaller than the sum of its proper divisors (133943068).

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

90500900 is a wasteful number, since it uses less digits than its factorization.

90500900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129308 (or 129301 counting only the distinct ones).

The product of its (nonzero) digits is 405, while the sum is 23.

The square root of 90500900 is about 9513.1960980524. The cubic root of 90500900 is about 448.9703206060.

The spelling of 90500900 in words is "ninety million, five hundred thousand, nine hundred".