91079768 has 32 divisors (see below), whose sum is σ = 193594800. Its totient is φ = 39823488.

The previous prime is 91079759. The next prime is 91079773. The reversal of 91079768 is 86797019.

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 7 ways as a sum of consecutive naturals, for example, 21071 + ... + 25022.

Almost surely, 2^91079768 is an apocalyptic number.

It is an amenable number.

91079768 is an abundant number, since it is smaller than the sum of its proper divisors (102515032).

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

91079768 is a wasteful number, since it uses less digits than its factorization.

91079768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46131 (or 46127 counting only the distinct ones).

The product of its (nonzero) digits is 190512, while the sum is 47.

The square root of 91079768 is about 9543.5720775819. The cubic root of 91079768 is about 449.9255317102.

The spelling of 91079768 in words is "ninety-one million, seventy-nine thousand, seven hundred sixty-eight".