91336079 has 4 divisors (see below), whose sum is σ = 91403976. Its totient is φ = 91268184.

The previous prime is 91336061. The next prime is 91336081. The reversal of 91336079 is 97063319.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-91336079 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91336379) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31889 + ... + 34634.

It is an arithmetic number, because the mean of its divisors is an integer number (22850994).

Almost surely, 2^91336079 is an apocalyptic number.

91336079 is a deficient number, since it is larger than the sum of its proper divisors (67897).

91336079 is a wasteful number, since it uses less digits than its factorization.

91336079 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67896.

The product of its (nonzero) digits is 30618, while the sum is 38.

The square root of 91336079 is about 9556.9911059915. The cubic root of 91336079 is about 450.3471872108.

The spelling of 91336079 in words is "ninety-one million, three hundred thirty-six thousand, seventy-nine".