91936394 has 16 divisors (see below), whose sum is σ = 152909856. Its totient is φ = 41103600.

The previous prime is 91936393. The next prime is 91936417. The reversal of 91936394 is 49363919.

It is not an unprimeable number, because it can be changed into a prime (91936393) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32912 + ... + 35595.

It is an arithmetic number, because the mean of its divisors is an integer number (9556866).

Almost surely, 2^91936394 is an apocalyptic number.

91936394 is a deficient number, since it is larger than the sum of its proper divisors (60973462).

91936394 is a wasteful number, since it uses less digits than its factorization.

91936394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68581.

The product of its digits is 157464, while the sum is 44.

The square root of 91936394 is about 9588.3467813800. The cubic root of 91936394 is about 451.3316832511.

The spelling of 91936394 in words is "ninety-one million, nine hundred thirty-six thousand, three hundred ninety-four".