8668816 has 40 divisors (see below), whose sum is σ = 18373824. Its totient is φ = 3937920.

The previous prime is 8668813. The next prime is 8668817. The reversal of 8668816 is 6188668.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (8668813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14475 + ... + 15061.

Almost surely, 2^8668816 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 8668816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9186912).

8668816 is an abundant number, since it is smaller than the sum of its proper divisors (9705008).

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

8668816 is a wasteful number, since it uses less digits than its factorization.

8668816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 679 (or 673 counting only the distinct ones).

The product of its digits is 110592, while the sum is 43.

The square root of 8668816 is about 2944.2853122617. The cubic root of 8668816 is about 205.4249839165.

The spelling of 8668816 in words is "eight million, six hundred sixty-eight thousand, eight hundred sixteen".