79665007 has 2 divisors, whose sum is σ = 79665008. Its totient is φ = 79665006.

The previous prime is 79664983. The next prime is 79665011. The reversal of 79665007 is 70056697.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 79665007 - 2²³ = 71276399 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (79665017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39832503 + 39832504.

It is an arithmetic number, because the mean of its divisors is an integer number (39832504).

Almost surely, 2^79665007 is an apocalyptic number.

79665007 is a deficient number, since it is larger than the sum of its proper divisors (1).

79665007 is an equidigital number, since it uses as much as digits as its factorization.

79665007 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 79380, while the sum is 40.

The square root of 79665007 is about 8925.5255867652. The cubic root of 79665007 is about 430.2846627808.

The spelling of 79665007 in words is "seventy-nine million, six hundred sixty-five thousand, seven".