91296779 has 8 divisors (see below), whose sum is σ = 104675040. Its totient is φ = 78002496.

The previous prime is 91296773. The next prime is 91296781. The reversal of 91296779 is 97769219.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 91296779 - 2⁸ = 91296523 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (91296773) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18644 + ... + 23025.

It is an arithmetic number, because the mean of its divisors is an integer number (13084380).

Almost surely, 2^91296779 is an apocalyptic number.

91296779 is a deficient number, since it is larger than the sum of its proper divisors (13378261).

91296779 is a wasteful number, since it uses less digits than its factorization.

91296779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41989.

The product of its digits is 428652, while the sum is 50.

The square root of 91296779 is about 9554.9347983123. The cubic root of 91296779 is about 450.2825862933.

The spelling of 91296779 in words is "ninety-one million, two hundred ninety-six thousand, seven hundred seventy-nine".