90905916 has 48 divisors (see below), whose sum is σ = 216929664. Its totient is φ = 29622336.

The previous prime is 90905909. The next prime is 90905917. The reversal of 90905916 is 61950909.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90905917) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 106146 + ... + 106998.

It is an arithmetic number, because the mean of its divisors is an integer number (4519368).

Almost surely, 2^90905916 is an apocalyptic number.

It is an amenable number.

90905916 is an abundant number, since it is smaller than the sum of its proper divisors (126023748).

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

90905916 is a wasteful number, since it uses less digits than its factorization.

90905916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1050 (or 1048 counting only the distinct ones).

The product of its (nonzero) digits is 21870, while the sum is 39.

The square root of 90905916 is about 9534.4593973649. The cubic root of 90905916 is about 449.6390785023.

The spelling of 90905916 in words is "ninety million, nine hundred five thousand, nine hundred sixteen".