16387928 has 16 divisors (see below), whose sum is σ = 30807000. Its totient is φ = 8172736.

The previous prime is 16387919. The next prime is 16387951. The reversal of 16387928 is 82978361.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 908 + ... + 5796.

Almost surely, 2^16387928 is an apocalyptic number.

It is an amenable number.

16387928 is a deficient number, since it is larger than the sum of its proper divisors (14419072).

16387928 is a wasteful number, since it uses less digits than its factorization.

16387928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5314 (or 5310 counting only the distinct ones).

The product of its digits is 145152, while the sum is 44.

The square root of 16387928 is about 4048.2005879156. The cubic root of 16387928 is about 254.0044639305.

The spelling of 16387928 in words is "sixteen million, three hundred eighty-seven thousand, nine hundred twenty-eight".