17968716 has 60 divisors (see below), whose sum is σ = 48516160. Its totient is φ = 5793120.

The previous prime is 17968703. The next prime is 17968723. The reversal of 17968716 is 61786971.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 9150 + ... + 10938.

Almost surely, 2^17968716 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 17968716, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24258080).

17968716 is an abundant number, since it is smaller than the sum of its proper divisors (30547444).

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

17968716 is a wasteful number, since it uses less digits than its factorization.

17968716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1836 (or 1825 counting only the distinct ones).

The product of its digits is 127008, while the sum is 45.

The square root of 17968716 is about 4238.9522290302. The cubic root of 17968716 is about 261.9222230919.

The spelling of 17968716 in words is "seventeen million, nine hundred sixty-eight thousand, seven hundred sixteen".