80790079 has 2 divisors, whose sum is σ = 80790080. Its totient is φ = 80790078.

The previous prime is 80790067. The next prime is 80790107. The reversal of 80790079 is 97009708.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 80790079 - 2⁹ = 80789567 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80490079) by changing a digit.

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

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40395039 + 40395040.

It is an arithmetic number, because the mean of its divisors is an integer number (40395040).

Almost surely, 2^80790079 is an apocalyptic number.

80790079 is a deficient number, since it is larger than the sum of its proper divisors (1).

80790079 is an equidigital number, since it uses as much as digits as its factorization.

80790079 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 40.

The square root of 80790079 is about 8988.3301563750. The cubic root of 80790079 is about 432.3007718404.

The spelling of 80790079 in words is "eighty million, seven hundred ninety thousand, seventy-nine".