2109379 has 4 divisors (see below), whose sum is σ = 2136160. Its totient is φ = 2082600.

The previous prime is 2109329. The next prime is 2109391. The reversal of 2109379 is 9739012.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2109379 - 2¹⁵ = 2076611 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2109379.

It is not an unprimeable number, because it can be changed into a prime (2109329) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13272 + ... + 13429.

It is an arithmetic number, because the mean of its divisors is an integer number (534040).

2^2109379 is an apocalyptic number.

2109379 is a deficient number, since it is larger than the sum of its proper divisors (26781).

2109379 is an equidigital number, since it uses as much as digits as its factorization.

2109379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26780.

The product of its (nonzero) digits is 3402, while the sum is 31.

The square root of 2109379 is about 1452.3701318879. The cubic root of 2109379 is about 128.2482770662.

The spelling of 2109379 in words is "two million, one hundred nine thousand, three hundred seventy-nine".