2108685 has 16 divisors (see below), whose sum is σ = 3393216. Its totient is φ = 1118208.

The previous prime is 2108669. The next prime is 2108699. The reversal of 2108685 is 5868012.

It is not a de Polignac number, because 2108685 - 2⁴ = 2108669 is a prime.

2108685 is a lucky number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3582 + ... + 4128.

It is an arithmetic number, because the mean of its divisors is an integer number (212076).

2^2108685 is an apocalyptic number.

It is an amenable number.

2108685 is a deficient number, since it is larger than the sum of its proper divisors (1284531).

2108685 is a wasteful number, since it uses less digits than its factorization.

2108685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 812.

The product of its (nonzero) digits is 3840, while the sum is 30.

The square root of 2108685 is about 1452.1311924203. The cubic root of 2108685 is about 128.2342106724.

The spelling of 2108685 in words is "two million, one hundred eight thousand, six hundred eighty-five".