79078313 has 2 divisors, whose sum is σ = 79078314. Its totient is φ = 79078312.

The previous prime is 79078297. The next prime is 79078319. The reversal of 79078313 is 31387097.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 55234624 + 23843689 = 7432^2 + 4883^2 .

It is a cyclic number.

It is not a de Polignac number, because 79078313 - 2⁴ = 79078297 is a prime.

It is not a weakly prime, because it can be changed into another prime (79078319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39539156 + 39539157.

It is an arithmetic number, because the mean of its divisors is an integer number (39539157).

Almost surely, 2^79078313 is an apocalyptic number.

It is an amenable number.

79078313 is a deficient number, since it is larger than the sum of its proper divisors (1).

79078313 is an equidigital number, since it uses as much as digits as its factorization.

79078313 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31752, while the sum is 38.

The square root of 79078313 is about 8892.5987765107. The cubic root of 79078313 is about 429.2257800917.

The spelling of 79078313 in words is "seventy-nine million, seventy-eight thousand, three hundred thirteen".