79240079 has 2 divisors, whose sum is σ = 79240080. Its totient is φ = 79240078.

The previous prime is 79239989. The next prime is 79240097. The reversal of 79240079 is 97004297.

It is a happy number.

Together with next prime (79240097) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 79240079 - 2¹² = 79235983 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (79240379) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39620039 + 39620040.

It is an arithmetic number, because the mean of its divisors is an integer number (39620040).

Almost surely, 2^79240079 is an apocalyptic number.

79240079 is a deficient number, since it is larger than the sum of its proper divisors (1).

79240079 is an equidigital number, since it uses as much as digits as its factorization.

79240079 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31752, while the sum is 38.

The square root of 79240079 is about 8901.6896710681. The cubic root of 79240079 is about 429.5182616534.

The spelling of 79240079 in words is "seventy-nine million, two hundred forty thousand, seventy-nine".