15979099 has 6 divisors (see below), whose sum is σ = 16974644. Its totient is φ = 15038880.

The previous prime is 15979097. The next prime is 15979141. The reversal of 15979099 is 99097951.

It is not a de Polignac number, because 15979099 - 2¹ = 15979097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15979097) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 27357 + ... + 27934.

Almost surely, 2^15979099 is an apocalyptic number.

15979099 is a deficient number, since it is larger than the sum of its proper divisors (995545).

15979099 is an equidigital number, since it uses as much as digits as its factorization.

15979099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55325 (or 55308 counting only the distinct ones).

The product of its (nonzero) digits is 229635, while the sum is 49.

The square root of 15979099 is about 3997.3865212161. The cubic root of 15979099 is about 251.8744387922.

The spelling of 15979099 in words is "fifteen million, nine hundred seventy-nine thousand, ninety-nine".