20597672 has 16 divisors (see below), whose sum is σ = 40653600. Its totient is φ = 9756720.

The previous prime is 20597669. The next prime is 20597699. The reversal of 20597672 is 27679502.

It is a Harshad number since it is a multiple of its sum of digits (38).

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, 67604 + ... + 67907.

It is an arithmetic number, because the mean of its divisors is an integer number (2540850).

Almost surely, 2^20597672 is an apocalyptic number.

It is an amenable number.

20597672 is a deficient number, since it is larger than the sum of its proper divisors (20055928).

20597672 is a wasteful number, since it uses less digits than its factorization.

20597672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135536 (or 135532 counting only the distinct ones).

The product of its (nonzero) digits is 52920, while the sum is 38.

The square root of 20597672 is about 4538.4658200762. The cubic root of 20597672 is about 274.1191518295.

The spelling of 20597672 in words is "twenty million, five hundred ninety-seven thousand, six hundred seventy-two".