16872355 has 4 divisors (see below), whose sum is σ = 20246832. Its totient is φ = 13497880.

The previous prime is 16872343. The next prime is 16872379. The reversal of 16872355 is 55327861.

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

It is not a de Polignac number, because 16872355 - 2¹⁵ = 16839587 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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, 1687231 + ... + 1687240.

It is an arithmetic number, because the mean of its divisors is an integer number (5061708).

Almost surely, 2^16872355 is an apocalyptic number.

16872355 is a deficient number, since it is larger than the sum of its proper divisors (3374477).

16872355 is an equidigital number, since it uses as much as digits as its factorization.

16872355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3374476.

The product of its digits is 50400, while the sum is 37.

The square root of 16872355 is about 4107.5972295248. The cubic root of 16872355 is about 256.4829901564.

The spelling of 16872355 in words is "sixteen million, eight hundred seventy-two thousand, three hundred fifty-five".