16872287 has 8 divisors (see below), whose sum is σ = 17574240. Its totient is φ = 16178400.

The previous prime is 16872283. The next prime is 16872301. The reversal of 16872287 is 78227861.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 16872287 - 2² = 16872283 is a prime.

It is a super-2 number, since 2×16872287² = 569348137220738, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16872281) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 2453 + ... + 6305.

It is an arithmetic number, because the mean of its divisors is an integer number (2196780).

Almost surely, 2^16872287 is an apocalyptic number.

16872287 is a deficient number, since it is larger than the sum of its proper divisors (701953).

16872287 is a wasteful number, since it uses less digits than its factorization.

16872287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4033.

The product of its digits is 75264, while the sum is 41.

The square root of 16872287 is about 4107.5889521713. The cubic root of 16872287 is about 256.4826455915.

The spelling of 16872287 in words is "sixteen million, eight hundred seventy-two thousand, two hundred eighty-seven".