91792313 has 2 divisors, whose sum is σ = 91792314. Its totient is φ = 91792312.

The previous prime is 91792297. The next prime is 91792319. The reversal of 91792313 is 31329719.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 80856064 + 10936249 = 8992^2 + 3307^2 .

It is a cyclic number.

It is not a de Polignac number, because 91792313 - 2⁴ = 91792297 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (91792319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45896156 + 45896157.

It is an arithmetic number, because the mean of its divisors is an integer number (45896157).

Almost surely, 2^91792313 is an apocalyptic number.

It is an amenable number.

91792313 is a deficient number, since it is larger than the sum of its proper divisors (1).

91792313 is an equidigital number, since it uses as much as digits as its factorization.

91792313 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10206, while the sum is 35.

The square root of 91792313 is about 9580.8304963609. The cubic root of 91792313 is about 451.0957871153.

The spelling of 91792313 in words is "ninety-one million, seven hundred ninety-two thousand, three hundred thirteen".