8664816 has 40 divisors (see below), whose sum is σ = 22627024. Its totient is φ = 2856960.

The previous prime is 8664791. The next prime is 8664847. The reversal of 8664816 is 6184668.

It is a nude number because it is divisible by every one of its digits.

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, 3726 + ... + 5586.

Almost surely, 2^8664816 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 8664816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11313512).

8664816 is an abundant number, since it is smaller than the sum of its proper divisors (13962208).

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

8664816 is a wasteful number, since it uses less digits than its factorization.

8664816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1969 (or 1963 counting only the distinct ones).

The product of its digits is 55296, while the sum is 39.

The square root of 8664816 is about 2943.6059518896. The cubic root of 8664816 is about 205.3933830477.

The spelling of 8664816 in words is "eight million, six hundred sixty-four thousand, eight hundred sixteen".