91955374 has 16 divisors (see below), whose sum is σ = 161483616. Its totient is φ = 38448000.

The previous prime is 91955341. The next prime is 91955387. The reversal of 91955374 is 47355919.

It is a self number, because there is not a number n which added to its sum of digits gives 91955374.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79527 + ... + 80674.

It is an arithmetic number, because the mean of its divisors is an integer number (10092726).

Almost surely, 2^91955374 is an apocalyptic number.

91955374 is a deficient number, since it is larger than the sum of its proper divisors (69528242).

91955374 is a wasteful number, since it uses less digits than its factorization.

91955374 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160251.

The product of its digits is 170100, while the sum is 43.

The square root of 91955374 is about 9589.3364733959. The cubic root of 91955374 is about 451.3627398166.

It can be divided in two parts, 91955 and 374, that added together give a palindrome (92329).

The spelling of 91955374 in words is "ninety-one million, nine hundred fifty-five thousand, three hundred seventy-four".