90500992 has 32 divisors (see below), whose sum is σ = 181029600. Its totient is φ = 45066240.

The previous prime is 90500989. The next prime is 90500999. The reversal of 90500992 is 29900509.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90500999) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 33384 + ... + 35992.

It is an arithmetic number, because the mean of its divisors is an integer number (5657175).

Almost surely, 2^90500992 is an apocalyptic number.

It is an amenable number.

90500992 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

90500992 is a wasteful number, since it uses less digits than its factorization.

90500992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2894 (or 2882 counting only the distinct ones).

The product of its (nonzero) digits is 7290, while the sum is 34.

The square root of 90500992 is about 9513.2009334398. The cubic root of 90500992 is about 448.9704727418.

The spelling of 90500992 in words is "ninety million, five hundred thousand, nine hundred ninety-two".