91168922 has 16 divisors (see below), whose sum is σ = 148653792. Its totient is φ = 41683440.

The previous prime is 91168907. The next prime is 91168927. The reversal of 91168922 is 22986119.

It is not an unprimeable number, because it can be changed into a prime (91168927) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 13604 + ... + 19167.

It is an arithmetic number, because the mean of its divisors is an integer number (9290862).

Almost surely, 2^91168922 is an apocalyptic number.

91168922 is a deficient number, since it is larger than the sum of its proper divisors (57484870).

91168922 is a wasteful number, since it uses less digits than its factorization.

91168922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32893.

The product of its digits is 15552, while the sum is 38.

The square root of 91168922 is about 9548.2418276874. The cubic root of 91168922 is about 450.0722879755.

The spelling of 91168922 in words is "ninety-one million, one hundred sixty-eight thousand, nine hundred twenty-two".