16856982 has 12 divisors (see below), whose sum is σ = 36523500. Its totient is φ = 5618988.

The previous prime is 16856977. The next prime is 16856993. The reversal of 16856982 is 28965861.

16856982 is a `hidden beast` number, since 1 + 6 + 8 + 569 + 82 = 666.

It is a hoax number, since the sum of its digits (45) 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 pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 468232 + ... + 468267.

It is an arithmetic number, because the mean of its divisors is an integer number (3043625).

Almost surely, 2^16856982 is an apocalyptic number.

16856982 is an abundant number, since it is smaller than the sum of its proper divisors (19666518).

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

16856982 is a wasteful number, since it uses less digits than its factorization.

16856982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 936507 (or 936504 counting only the distinct ones).

The product of its digits is 207360, while the sum is 45.

The square root of 16856982 is about 4105.7255144493. The cubic root of 16856982 is about 256.4050695752.

The spelling of 16856982 in words is "sixteen million, eight hundred fifty-six thousand, nine hundred eighty-two".