91992967 has 16 divisors (see below), whose sum is σ = 107557632. Its totient is φ = 77749120.

The previous prime is 91992947. The next prime is 91992983. The reversal of 91992967 is 76929919.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-91992967 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91992907) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12558 + ... + 18484.

It is an arithmetic number, because the mean of its divisors is an integer number (6722352).

Almost surely, 2^91992967 is an apocalyptic number.

91992967 is a deficient number, since it is larger than the sum of its proper divisors (15564665).

91992967 is a wasteful number, since it uses less digits than its factorization.

91992967 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6038.

The product of its digits is 551124, while the sum is 52.

The square root of 91992967 is about 9591.2964191500. The cubic root of 91992967 is about 451.4242398210.

The spelling of 91992967 in words is "ninety-one million, nine hundred ninety-two thousand, nine hundred sixty-seven".