20874685 has 16 divisors (see below), whose sum is σ = 28151424. Its totient is φ = 14743872.

The previous prime is 20874677. The next prime is 20874713. The reversal of 20874685 is 58647802.

It is not a de Polignac number, because 20874685 - 2³ = 20874677 is a prime.

It is a Duffinian 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, 5487 + ... + 8476.

It is an arithmetic number, because the mean of its divisors is an integer number (1759464).

Almost surely, 2^20874685 is an apocalyptic number.

It is an amenable number.

20874685 is a deficient number, since it is larger than the sum of its proper divisors (7276739).

20874685 is a wasteful number, since it uses less digits than its factorization.

20874685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14004.

The product of its (nonzero) digits is 107520, while the sum is 40.

The square root of 20874685 is about 4568.8822484279. The cubic root of 20874685 is about 275.3425373490.

The spelling of 20874685 in words is "twenty million, eight hundred seventy-four thousand, six hundred eighty-five".