2108919 has 8 divisors (see below), whose sum is σ = 2837232. Its totient is φ = 1393280.

The previous prime is 2108881. The next prime is 2108927. The reversal of 2108919 is 9198012.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2108919 - 2¹³ = 2100727 is a prime.

It is a super-2 number, since 2×2108919² = 8895078697122, which contains 22 as substring.

It is a congruent 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 7 ways as a sum of consecutive naturals, for example, 2772 + ... + 3449.

It is an arithmetic number, because the mean of its divisors is an integer number (354654).

2^2108919 is an apocalyptic number.

2108919 is a deficient number, since it is larger than the sum of its proper divisors (728313).

2108919 is a wasteful number, since it uses less digits than its factorization.

2108919 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6337.

The product of its (nonzero) digits is 1296, while the sum is 30.

The square root of 2108919 is about 1452.2117614177. The cubic root of 2108919 is about 128.2389538647.

The spelling of 2108919 in words is "two million, one hundred eight thousand, nine hundred nineteen".