16987028 has 12 divisors (see below), whose sum is σ = 30034452. Its totient is φ = 8405760.

The previous prime is 16987001. The next prime is 16987049. The reversal of 16987028 is 82078961.

It can be written as a sum of positive squares in 2 ways, for example, as 13557124 + 3429904 = 3682^2 + 1852^2 .

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21503 + ... + 22278.

It is an arithmetic number, because the mean of its divisors is an integer number (2502871).

Almost surely, 2^16987028 is an apocalyptic number.

It is an amenable number.

16987028 is a deficient number, since it is larger than the sum of its proper divisors (13047424).

16987028 is a wasteful number, since it uses less digits than its factorization.

16987028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43882 (or 43880 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 41.

The square root of 16987028 is about 4121.5322393498. The cubic root of 16987028 is about 257.0627411202.

The spelling of 16987028 in words is "sixteen million, nine hundred eighty-seven thousand, twenty-eight".