79575679 has 2 divisors, whose sum is σ = 79575680. Its totient is φ = 79575678.

The previous prime is 79575649. The next prime is 79575689. The reversal of 79575679 is 97657597.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 79575679 - 2²³ = 71187071 is a prime.

It is a super-2 number, since 2×79575679² = 12664577376622082, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (79575619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39787839 + 39787840.

It is an arithmetic number, because the mean of its divisors is an integer number (39787840).

Almost surely, 2^79575679 is an apocalyptic number.

79575679 is a deficient number, since it is larger than the sum of its proper divisors (1).

79575679 is an equidigital number, since it uses as much as digits as its factorization.

79575679 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4167450, while the sum is 55.

The square root of 79575679 is about 8920.5201081551. The cubic root of 79575679 is about 430.1237772386.

The spelling of 79575679 in words is "seventy-nine million, five hundred seventy-five thousand, six hundred seventy-nine".