16872990 has 32 divisors (see below), whose sum is σ = 41803776. Its totient is φ = 4354080.

The previous prime is 16872979. The next prime is 16873009. The reversal of 16872990 is 9927861.

It is a congruent 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 15 ways as a sum of consecutive naturals, for example, 8142 + ... + 10001.

It is an arithmetic number, because the mean of its divisors is an integer number (1306368).

Almost surely, 2^16872990 is an apocalyptic number.

16872990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16872990 is an abundant number, since it is smaller than the sum of its proper divisors (24930786).

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

16872990 is a wasteful number, since it uses less digits than its factorization.

16872990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18184.

The product of its (nonzero) digits is 54432, while the sum is 42.

The square root of 16872990 is about 4107.6745245942. The cubic root of 16872990 is about 256.4862077404.

The spelling of 16872990 in words is "sixteen million, eight hundred seventy-two thousand, nine hundred ninety".