16979860 has 12 divisors (see below), whose sum is σ = 35657748. Its totient is φ = 6791936.

The previous prime is 16979849. The next prime is 16979861. The reversal of 16979860 is 6897961.

It can be written as a sum of positive squares in 2 ways, for example, as 4334724 + 12645136 = 2082^2 + 3556^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 16979860.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16979861) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 424477 + ... + 424516.

It is an arithmetic number, because the mean of its divisors is an integer number (2971479).

Almost surely, 2^16979860 is an apocalyptic number.

16979860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16979860 is an abundant number, since it is smaller than the sum of its proper divisors (18677888).

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

16979860 is a wasteful number, since it uses less digits than its factorization.

16979860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 849002 (or 849000 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 46.

The square root of 16979860 is about 4120.6625680830. The cubic root of 16979860 is about 257.0265785267.

The spelling of 16979860 in words is "sixteen million, nine hundred seventy-nine thousand, eight hundred sixty".