20713712 has 20 divisors (see below), whose sum is σ = 40525680. Its totient is φ = 10255488.

The previous prime is 20713703. The next prime is 20713741. The reversal of 20713712 is 21731702.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4637 + ... + 7932.

It is an arithmetic number, because the mean of its divisors is an integer number (2026284).

Almost surely, 2^20713712 is an apocalyptic number.

It is an amenable number.

20713712 is a deficient number, since it is larger than the sum of its proper divisors (19811968).

20713712 is a wasteful number, since it uses less digits than its factorization.

20713712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12680 (or 12674 counting only the distinct ones).

The product of its (nonzero) digits is 588, while the sum is 23.

The square root of 20713712 is about 4551.2319211396. The cubic root of 20713712 is about 274.6329516330.

The spelling of 20713712 in words is "twenty million, seven hundred thirteen thousand, seven hundred twelve".