16684912 has 20 divisors (see below), whose sum is σ = 32468656. Its totient is φ = 8305920.

The previous prime is 16684901. The next prime is 16684931. The reversal of 16684912 is 21948661.

It is a happy number.

It is a nialpdrome in base 16.

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, 1693 + ... + 6019.

Almost surely, 2^16684912 is an apocalyptic number.

It is an amenable number.

16684912 is a deficient number, since it is larger than the sum of its proper divisors (15783744).

16684912 is a wasteful number, since it uses less digits than its factorization.

16684912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4576 (or 4570 counting only the distinct ones).

The product of its digits is 20736, while the sum is 37.

The square root of 16684912 is about 4084.7168812538. The cubic root of 16684912 is about 255.5296539456.

It can be divided in two parts, 166 and 84912, that added together give a triangular number (85078 = T₄₁₂).

The spelling of 16684912 in words is "sixteen million, six hundred eighty-four thousand, nine hundred twelve".