16979646 has 16 divisors (see below), whose sum is σ = 34228224. Its totient is φ = 5615064.

The previous prime is 16979639. The next prime is 16979657. The reversal of 16979646 is 64697961.

It is a junction number, because it is equal to n+sod(n) for n = 16979595 and 16979604.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10380 + ... + 11903.

It is an arithmetic number, because the mean of its divisors is an integer number (2139264).

Almost surely, 2^16979646 is an apocalyptic number.

16979646 is an abundant number, since it is smaller than the sum of its proper divisors (17248578).

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

16979646 is a wasteful number, since it uses less digits than its factorization.

16979646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22415.

The product of its digits is 489888, while the sum is 48.

The square root of 16979646 is about 4120.6366013033. The cubic root of 16979646 is about 257.0254987393.

The spelling of 16979646 in words is "sixteen million, nine hundred seventy-nine thousand, six hundred forty-six".