90916965 has 16 divisors (see below), whose sum is σ = 161630400. Its totient is φ = 48488976.

The previous prime is 90916933. The next prime is 90916979. The reversal of 90916965 is 56961909.

It is not a de Polignac number, because 90916965 - 2⁵ = 90916933 is a prime.

It is a super-2 number, since 2×90916965² = 16531789049622450, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 90916965.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 336595 + ... + 336864.

It is an arithmetic number, because the mean of its divisors is an integer number (10101900).

Almost surely, 2^90916965 is an apocalyptic number.

It is an amenable number.

90916965 is a deficient number, since it is larger than the sum of its proper divisors (70713435).

90916965 is a wasteful number, since it uses less digits than its factorization.

90916965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 673473 (or 673467 counting only the distinct ones).

The product of its (nonzero) digits is 131220, while the sum is 45.

The square root of 90916965 is about 9535.0388043259. The cubic root of 90916965 is about 449.6572946285.

The spelling of 90916965 in words is "ninety million, nine hundred sixteen thousand, nine hundred sixty-five".