20874712 has 8 divisors (see below), whose sum is σ = 39140100. Its totient is φ = 10437352.

The previous prime is 20874677. The next prime is 20874713. The reversal of 20874712 is 21747802.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20874713) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1304662 + ... + 1304677.

Almost surely, 2^20874712 is an apocalyptic number.

It is an amenable number.

20874712 is a deficient number, since it is larger than the sum of its proper divisors (18265388).

20874712 is a wasteful number, since it uses less digits than its factorization.

20874712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2609345 (or 2609341 counting only the distinct ones).

The product of its (nonzero) digits is 6272, while the sum is 31.

The square root of 20874712 is about 4568.8852031978. The cubic root of 20874712 is about 275.3426560613.

The spelling of 20874712 in words is "twenty million, eight hundred seventy-four thousand, seven hundred twelve".