16718872 has 8 divisors (see below), whose sum is σ = 31347900. Its totient is φ = 8359432.

The previous prime is 16718869. The next prime is 16718881. The reversal of 16718872 is 27881761.

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

It is a zygodrome in base 2.

It is a congruent number.

It is an unprimeable number.

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, 1044922 + ... + 1044937.

Almost surely, 2^16718872 is an apocalyptic number.

It is an amenable number.

16718872 is a deficient number, since it is larger than the sum of its proper divisors (14629028).

16718872 is a wasteful number, since it uses less digits than its factorization.

16718872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2089865 (or 2089861 counting only the distinct ones).

The product of its digits is 37632, while the sum is 40.

The square root of 16718872 is about 4088.8717270171. The cubic root of 16718872 is about 255.7029024108.

The spelling of 16718872 in words is "sixteen million, seven hundred eighteen thousand, eight hundred seventy-two".