90765912 has 32 divisors (see below), whose sum is σ = 236782080. Its totient is φ = 28939680.

The previous prime is 90765877. The next prime is 90765943. The reversal of 90765912 is 21956709.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81664 + ... + 82767.

It is an arithmetic number, because the mean of its divisors is an integer number (7399440).

Almost surely, 2^90765912 is an apocalyptic number.

90765912 is a gapful number since it is divisible by the number (92) formed by its first and last digit.

It is an amenable number.

90765912 is an abundant number, since it is smaller than the sum of its proper divisors (146016168).

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

90765912 is a wasteful number, since it uses less digits than its factorization.

90765912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164463 (or 164459 counting only the distinct ones).

The product of its (nonzero) digits is 34020, while the sum is 39.

The square root of 90765912 is about 9527.1145684305. The cubic root of 90765912 is about 449.4081305178.

The spelling of 90765912 in words is "ninety million, seven hundred sixty-five thousand, nine hundred twelve".