16872851 has 4 divisors (see below), whose sum is σ = 17328912. Its totient is φ = 16416792.

The previous prime is 16872847. The next prime is 16872883. The reversal of 16872851 is 15827861.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 16872851 - 2² = 16872847 is a prime.

It is a super-3 number, since 3×16872851³ (a number of 23 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16872451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 227975 + ... + 228048.

It is an arithmetic number, because the mean of its divisors is an integer number (4332228).

Almost surely, 2^16872851 is an apocalyptic number.

16872851 is a deficient number, since it is larger than the sum of its proper divisors (456061).

16872851 is an equidigital number, since it uses as much as digits as its factorization.

16872851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 456060.

The product of its digits is 26880, while the sum is 38.

The square root of 16872851 is about 4107.6576050104. The cubic root of 16872851 is about 256.4855034258.

The spelling of 16872851 in words is "sixteen million, eight hundred seventy-two thousand, eight hundred fifty-one".