9868664 has 32 divisors (see below), whose sum is σ = 20576640. Its totient is φ = 4406400.

The previous prime is 9868643. The next prime is 9868693. The reversal of 9868664 is 4668689.

9868664 is nontrivially palindromic in base 3.

9868664 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 1694 + ... + 4754.

It is an arithmetic number, because the mean of its divisors is an integer number (643020).

Almost surely, 2^9868664 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 9868664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10288320).

9868664 is an abundant number, since it is smaller than the sum of its proper divisors (10707976).

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

9868664 is a wasteful number, since it uses less digits than its factorization.

9868664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3111 (or 3107 counting only the distinct ones).

The product of its digits is 497664, while the sum is 47.

The square root of 9868664 is about 3141.4429805425. The cubic root of 9868664 is about 214.4961266989.

The spelling of 9868664 in words is "nine million, eight hundred sixty-eight thousand, six hundred sixty-four".