79312679 has 2 divisors, whose sum is σ = 79312680. Its totient is φ = 79312678.

The previous prime is 79312661. The next prime is 79312687. The reversal of 79312679 is 97621397.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 79312679 - 2¹² = 79308583 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (79312619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39656339 + 39656340.

It is an arithmetic number, because the mean of its divisors is an integer number (39656340).

Almost surely, 2^79312679 is an apocalyptic number.

79312679 is a deficient number, since it is larger than the sum of its proper divisors (1).

79312679 is an equidigital number, since it uses as much as digits as its factorization.

79312679 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 142884, while the sum is 44.

The square root of 79312679 is about 8905.7666149524. The cubic root of 79312679 is about 429.6493969227.

The spelling of 79312679 in words is "seventy-nine million, three hundred twelve thousand, six hundred seventy-nine".