16872218 has 16 divisors (see below), whose sum is σ = 27721440. Its totient is φ = 7638000.

The previous prime is 16872199. The next prime is 16872221. The reversal of 16872218 is 81227861.

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, 4493 + ... + 7343.

It is an arithmetic number, because the mean of its divisors is an integer number (1732590).

Almost surely, 2^16872218 is an apocalyptic number.

16872218 is a deficient number, since it is larger than the sum of its proper divisors (10849222).

16872218 is a wasteful number, since it uses less digits than its factorization.

16872218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3133.

The product of its digits is 10752, while the sum is 35.

The square root of 16872218 is about 4107.5805530750. The cubic root of 16872218 is about 256.4822959585.

The spelling of 16872218 in words is "sixteen million, eight hundred seventy-two thousand, two hundred eighteen".