99992879 has 12 divisors (see below), whose sum is σ = 116578224. Its totient is φ = 85516704.

The previous prime is 99992869. The next prime is 99992897. The reversal of 99992879 is 97829999.

It is a de Polignac number, because none of the positive numbers 2^k-99992879 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99992869) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22619 + ... + 26675.

It is an arithmetic number, because the mean of its divisors is an integer number (9714852).

Almost surely, 2^99992879 is an apocalyptic number.

99992879 is a deficient number, since it is larger than the sum of its proper divisors (16585345).

99992879 is a wasteful number, since it uses less digits than its factorization.

99992879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4574 (or 4567 counting only the distinct ones).

The product of its digits is 6613488, while the sum is 62.

The square root of 99992879 is about 9999.6439436612. The cubic root of 99992879 is about 464.1478655151.

The spelling of 99992879 in words is "ninety-nine million, nine hundred ninety-two thousand, eight hundred seventy-nine".