91162968 has 128 divisors (see below), whose sum is σ = 258552000. Its totient is φ = 26597376.

The previous prime is 91162943. The next prime is 91162987. The reversal of 91162968 is 86926119.

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 31 ways as a sum of consecutive naturals, for example, 611758 + ... + 611906.

Almost surely, 2^91162968 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 91162968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (129276000).

91162968 is an abundant number, since it is smaller than the sum of its proper divisors (167389032).

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

91162968 is a wasteful number, since it uses less digits than its factorization.

91162968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261 (or 257 counting only the distinct ones).

The product of its digits is 46656, while the sum is 42.

The square root of 91162968 is about 9547.9300374479. The cubic root of 91162968 is about 450.0624900872.

The spelling of 91162968 in words is "ninety-one million, one hundred sixty-two thousand, nine hundred sixty-eight".