16609828 has 12 divisors (see below), whose sum is σ = 29195740. Its totient is φ = 8268192.

The previous prime is 16609823. The next prime is 16609843. The reversal of 16609828 is 82890661.

It can be written as a sum of positive squares in 2 ways, for example, as 11778624 + 4831204 = 3432^2 + 2198^2 .

It is not an unprimeable number, because it can be changed into a prime (16609823) by changing a digit.

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, 8151 + ... + 9982.

Almost surely, 2^16609828 is an apocalyptic number.

It is an amenable number.

16609828 is a deficient number, since it is larger than the sum of its proper divisors (12585912).

16609828 is a wasteful number, since it uses less digits than its factorization.

16609828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18366 (or 18364 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 40.

The square root of 16609828 is about 4075.5156728934. The cubic root of 16609828 is about 255.1457733730.

The spelling of 16609828 in words is "sixteen million, six hundred nine thousand, eight hundred twenty-eight".