79915711 has 2 divisors, whose sum is σ = 79915712. Its totient is φ = 79915710.

The previous prime is 79915709. The next prime is 79915723. The reversal of 79915711 is 11751997.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 79915711 - 2¹ = 79915709 is a prime.

Together with 79915709, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (79915751) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39957855 + 39957856.

It is an arithmetic number, because the mean of its divisors is an integer number (39957856).

Almost surely, 2^79915711 is an apocalyptic number.

79915711 is a deficient number, since it is larger than the sum of its proper divisors (1).

79915711 is an equidigital number, since it uses as much as digits as its factorization.

79915711 is an evil number, because the sum of its binary digits is even.

The product of its digits is 19845, while the sum is 40.

The square root of 79915711 is about 8939.5587698723. The cubic root of 79915711 is about 430.7355555398.

The spelling of 79915711 in words is "seventy-nine million, nine hundred fifteen thousand, seven hundred eleven".