16722872 has 32 divisors (see below), whose sum is σ = 32384880. Its totient is φ = 8090880.

The previous prime is 16722859. The next prime is 16722899. The reversal of 16722872 is 27822761.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59372 + ... + 59652.

Almost surely, 2^16722872 is an apocalyptic number.

It is an amenable number.

16722872 is a deficient number, since it is larger than the sum of its proper divisors (15662008).

16722872 is a wasteful number, since it uses less digits than its factorization.

16722872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 503 (or 499 counting only the distinct ones).

The product of its digits is 18816, while the sum is 35.

The square root of 16722872 is about 4089.3608302521. The cubic root of 16722872 is about 255.7232931415.

The spelling of 16722872 in words is "sixteen million, seven hundred twenty-two thousand, eight hundred seventy-two".