8678664 has 80 divisors (see below), whose sum is σ = 24829200. Its totient is φ = 2831328.

The previous prime is 8678639. The next prime is 8678669. The reversal of 8678664 is 4668768.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (8678669) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 38119 + ... + 38345.

It is an arithmetic number, because the mean of its divisors is an integer number (310365).

Almost surely, 2^8678664 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 8678664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12414600).

8678664 is an abundant number, since it is smaller than the sum of its proper divisors (16150536).

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

8678664 is a wasteful number, since it uses less digits than its factorization.

8678664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 304 (or 291 counting only the distinct ones).

The product of its digits is 387072, while the sum is 45.

The square root of 8678664 is about 2945.9572298321. The cubic root of 8678664 is about 205.5027438496.

The spelling of 8678664 in words is "eight million, six hundred seventy-eight thousand, six hundred sixty-four".