2108979 has 6 divisors (see below), whose sum is σ = 3046316. Its totient is φ = 1405980.

The previous prime is 2108957. The next prime is 2108983. The reversal of 2108979 is 9798012.

It is a happy number.

It is not a de Polignac number, because 2108979 - 2⁸ = 2108723 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2108929) 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, 117157 + ... + 117174.

2^2108979 is an apocalyptic number.

2108979 is a deficient number, since it is larger than the sum of its proper divisors (937337).

2108979 is a wasteful number, since it uses less digits than its factorization.

2108979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234337 (or 234334 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 36.

The square root of 2108979 is about 1452.2324194150. The cubic root of 2108979 is about 128.2401700114.

The spelling of 2108979 in words is "two million, one hundred eight thousand, nine hundred seventy-nine".