16872216 has 32 divisors (see below), whose sum is σ = 42282240. Its totient is φ = 5610528.

The previous prime is 16872199. The next prime is 16872221. The reversal of 16872216 is 61227861.

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, 16965 + ... + 17931.

It is an arithmetic number, because the mean of its divisors is an integer number (1321320).

Almost surely, 2^16872216 is an apocalyptic number.

It is an amenable number.

16872216 is an abundant number, since it is smaller than the sum of its proper divisors (25410024).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16872216 is a wasteful number, since it uses less digits than its factorization.

16872216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1703 (or 1699 counting only the distinct ones).

The product of its digits is 8064, while the sum is 33.

The square root of 16872216 is about 4107.5803096227. The cubic root of 16872216 is about 256.4822858242.

The spelling of 16872216 in words is "sixteen million, eight hundred seventy-two thousand, two hundred sixteen".