79716317 has 2 divisors, whose sum is σ = 79716318. Its totient is φ = 79716316.

The previous prime is 79716313. The next prime is 79716323. The reversal of 79716317 is 71361797.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 45306361 + 34409956 = 6731^2 + 5866^2 .

It is a cyclic number.

It is not a de Polignac number, because 79716317 - 2² = 79716313 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (79716313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39858158 + 39858159.

It is an arithmetic number, because the mean of its divisors is an integer number (39858159).

Almost surely, 2^79716317 is an apocalyptic number.

It is an amenable number.

79716317 is a deficient number, since it is larger than the sum of its proper divisors (1).

79716317 is an equidigital number, since it uses as much as digits as its factorization.

79716317 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 55566, while the sum is 41.

The square root of 79716317 is about 8928.3994646297. The cubic root of 79716317 is about 430.3770210556.

The spelling of 79716317 in words is "seventy-nine million, seven hundred sixteen thousand, three hundred seventeen".