16889556 has 24 divisors (see below), whose sum is σ = 41483680. Its totient is φ = 5333472.

The previous prime is 16889527. The next prime is 16889569. The reversal of 16889556 is 65598861.

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 7 ways as a sum of consecutive naturals, for example, 36811 + ... + 37266.

Almost surely, 2^16889556 is an apocalyptic number.

It is an amenable number.

16889556 is an abundant number, since it is smaller than the sum of its proper divisors (24594124).

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

16889556 is a wasteful number, since it uses less digits than its factorization.

16889556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74103 (or 74101 counting only the distinct ones).

The product of its digits is 518400, while the sum is 48.

The square root of 16889556 is about 4109.6904992955. The cubic root of 16889556 is about 256.5701201694.

The spelling of 16889556 in words is "sixteen million, eight hundred eighty-nine thousand, five hundred fifty-six".