16980685 has 8 divisors (see below), whose sum is σ = 20401920. Its totient is φ = 13567824.

The previous prime is 16980679. The next prime is 16980697. The reversal of 16980685 is 58608961.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16980685 is a prime.

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, 3976 + ... + 7054.

It is an arithmetic number, because the mean of its divisors is an integer number (2550240).

Almost surely, 2^16980685 is an apocalyptic number.

It is an amenable number.

16980685 is a deficient number, since it is larger than the sum of its proper divisors (3421235).

16980685 is a wasteful number, since it uses less digits than its factorization.

16980685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4187.

The product of its (nonzero) digits is 103680, while the sum is 43.

The square root of 16980685 is about 4120.7626721276. The cubic root of 16980685 is about 257.0307411738.

The spelling of 16980685 in words is "sixteen million, nine hundred eighty thousand, six hundred eighty-five".