16889928 has 32 divisors (see below), whose sum is σ = 46064160. Its totient is φ = 5118080.

The previous prime is 16889923. The next prime is 16889933. The reversal of 16889928 is 82998861.

It is an interprime number because it is at equal distance from previous prime (16889923) and next prime (16889933).

It is not an unprimeable number, because it can be changed into a prime (16889921) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31725 + ... + 32252.

It is an arithmetic number, because the mean of its divisors is an integer number (1439505).

Almost surely, 2^16889928 is an apocalyptic number.

It is an amenable number.

16889928 is an abundant number, since it is smaller than the sum of its proper divisors (29174232).

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

16889928 is a wasteful number, since it uses less digits than its factorization.

16889928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63997 (or 63993 counting only the distinct ones).

The product of its digits is 497664, while the sum is 51.

The square root of 16889928 is about 4109.7357579290. The cubic root of 16889928 is about 256.5720038460.

The spelling of 16889928 in words is "sixteen million, eight hundred eighty-nine thousand, nine hundred twenty-eight".