16686882 has 12 divisors (see below), whose sum is σ = 36154950. Its totient is φ = 5562288.

The previous prime is 16686869. The next prime is 16686893. The reversal of 16686882 is 28868661.

It can be written as a sum of positive squares in only one way, i.e., 14130081 + 2556801 = 3759^2 + 1599^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 463507 + ... + 463542.

Almost surely, 2^16686882 is an apocalyptic number.

16686882 is an abundant number, since it is smaller than the sum of its proper divisors (19468068).

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

16686882 is a wasteful number, since it uses less digits than its factorization.

16686882 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 927057 (or 927054 counting only the distinct ones).

The product of its digits is 221184, while the sum is 45.

The square root of 16686882 is about 4084.9580169201. The cubic root of 16686882 is about 255.5397104087.

The spelling of 16686882 in words is "sixteen million, six hundred eighty-six thousand, eight hundred eighty-two".