99790079 has 2 divisors, whose sum is σ = 99790080. Its totient is φ = 99790078.

The previous prime is 99790069. The next prime is 99790099. The reversal of 99790079 is 97009799.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 99790079 - 2²⁴ = 83012863 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99790039) 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, 49895039 + 49895040.

It is an arithmetic number, because the mean of its divisors is an integer number (49895040).

Almost surely, 2^99790079 is an apocalyptic number.

99790079 is a deficient number, since it is larger than the sum of its proper divisors (1).

99790079 is an equidigital number, since it uses as much as digits as its factorization.

99790079 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 321489, while the sum is 50.

The square root of 99790079 is about 9989.4984358575. The cubic root of 99790079 is about 463.8338668392.

The spelling of 99790079 in words is "ninety-nine million, seven hundred ninety thousand, seventy-nine".