91796642 has 24 divisors (see below), whose sum is σ = 162629568. Its totient is φ = 38066760.

The previous prime is 91796599. The next prime is 91796671. The reversal of 91796642 is 24669719.

It is a junction number, because it is equal to n+sod(n) for n = 91796593 and 91796602.

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 11 ways as a sum of consecutive naturals, for example, 10043 + ... + 16865.

It is an arithmetic number, because the mean of its divisors is an integer number (6776232).

Almost surely, 2^91796642 is an apocalyptic number.

91796642 is a deficient number, since it is larger than the sum of its proper divisors (70832926).

91796642 is a wasteful number, since it uses less digits than its factorization.

91796642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6894 (or 6863 counting only the distinct ones).

The product of its digits is 163296, while the sum is 44.

The square root of 91796642 is about 9581.0564135694. The cubic root of 91796642 is about 451.1028783517.

The spelling of 91796642 in words is "ninety-one million, seven hundred ninety-six thousand, six hundred forty-two".