16684868 has 12 divisors (see below), whose sum is σ = 29910972. Its totient is φ = 8138880.

The previous prime is 16684853. The next prime is 16684883. The reversal of 16684868 is 86848661.

It is an interprime number because it is at equal distance from previous prime (16684853) and next prime (16684883).

It can be written as a sum of positive squares in 2 ways, for example, as 1459264 + 15225604 = 1208^2 + 3902^2 .

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, 50705 + ... + 51032.

It is an arithmetic number, because the mean of its divisors is an integer number (2492581).

Almost surely, 2^16684868 is an apocalyptic number.

It is an amenable number.

16684868 is a deficient number, since it is larger than the sum of its proper divisors (13226104).

16684868 is a wasteful number, since it uses less digits than its factorization.

16684868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101782 (or 101780 counting only the distinct ones).

The product of its digits is 442368, while the sum is 47.

The square root of 16684868 is about 4084.7114953201. The cubic root of 16684868 is about 255.5294293252.

The spelling of 16684868 in words is "sixteen million, six hundred eighty-four thousand, eight hundred sixty-eight".