99999000979 has 2 divisors, whose sum is σ = 99999000980. Its totient is φ = 99999000978.

The previous prime is 99999000953. The next prime is 99999001007. The reversal of 99999000979 is 97900099999.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 99999000979 - 2³³ = 91409066387 is a prime.

It is not a weakly prime, because it can be changed into another prime (99999000929) 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, 49999500489 + 49999500490.

It is an arithmetic number, because the mean of its divisors is an integer number (49999500490).

Almost surely, 2^99999000979 is an apocalyptic number.

99999000979 is a deficient number, since it is larger than the sum of its proper divisors (1).

99999000979 is an equidigital number, since it uses as much as digits as its factorization.

99999000979 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 33480783, while the sum is 70.

The spelling of 99999000979 in words is "ninety-nine billion, nine hundred ninety-nine million, nine hundred seventy-nine", and thus it is an aban number.