79902099 has 16 divisors (see below), whose sum is σ = 119243040. Its totient is φ = 52876800.

The previous prime is 79902089. The next prime is 79902149. The reversal of 79902099 is 99020997.

It is not a de Polignac number, because 79902099 - 2⁷ = 79901971 is a prime.

It is not an unprimeable number, because it can be changed into a prime (79902019) 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 in 15 ways as a sum of consecutive naturals, for example, 7102 + ... + 14499.

It is an arithmetic number, because the mean of its divisors is an integer number (7452690).

Almost surely, 2^79902099 is an apocalyptic number.

79902099 is a deficient number, since it is larger than the sum of its proper divisors (39340941).

79902099 is a wasteful number, since it uses less digits than its factorization.

79902099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21747 (or 21741 counting only the distinct ones).

The product of its (nonzero) digits is 91854, while the sum is 45.

The square root of 79902099 is about 8938.7974023355. The cubic root of 79902099 is about 430.7110984994.

The spelling of 79902099 in words is "seventy-nine million, nine hundred two thousand, ninety-nine".