108398979 has 40 divisors (see below), whose sum is σ = 176121792. Its totient is φ = 66044160.

The previous prime is 108398959. The next prime is 108398993. The reversal of 108398979 is 979893801.

It is not a de Polignac number, because 108398979 - 2⁵ = 108398947 is a prime.

It is not an unprimeable number, because it can be changed into a prime (108398959) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 118534 + ... + 119444.

Almost surely, 2^108398979 is an apocalyptic number.

108398979 is a deficient number, since it is larger than the sum of its proper divisors (67722813).

108398979 is a wasteful number, since it uses less digits than its factorization.

108398979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1049 (or 1040 counting only the distinct ones).

The product of its (nonzero) digits is 979776, while the sum is 54.

The square root of 108398979 is about 10411.4830355718. The cubic root of 108398979 is about 476.8060205682.

The spelling of 108398979 in words is "one hundred eight million, three hundred ninety-eight thousand, nine hundred seventy-nine".