79309079 has 2 divisors, whose sum is σ = 79309080. Its totient is φ = 79309078.

The previous prime is 79309051. The next prime is 79309081. The reversal of 79309079 is 97090397.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 79309079 - 2¹⁶ = 79243543 is a prime.

Together with 79309081, 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 (79300079) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39654539 + 39654540.

It is an arithmetic number, because the mean of its divisors is an integer number (39654540).

Almost surely, 2^79309079 is an apocalyptic number.

79309079 is a deficient number, since it is larger than the sum of its proper divisors (1).

79309079 is an equidigital number, since it uses as much as digits as its factorization.

79309079 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 107163, while the sum is 44.

The square root of 79309079 is about 8905.5644964258. The cubic root of 79309079 is about 429.6428962335.

The spelling of 79309079 in words is "seventy-nine million, three hundred nine thousand, seventy-nine".