9218664 has 192 divisors, whose sum is σ = 32558400. Its totient is φ = 2395008.

The previous prime is 9218647. The next prime is 9218683. The reversal of 9218664 is 4668129.

It is a Harshad number since it is a multiple of its sum of digits (36).

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 47 ways as a sum of consecutive naturals, for example, 137559 + ... + 137625.

It is an arithmetic number, because the mean of its divisors is an integer number (169575).

Almost surely, 2^9218664 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 9218664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16279200).

9218664 is an abundant number, since it is smaller than the sum of its proper divisors (23339736).

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

9218664 is a wasteful number, since it uses less digits than its factorization.

9218664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109 (or 92 counting only the distinct ones).

The product of its digits is 20736, while the sum is 36.

The square root of 9218664 is about 3036.2252880839. The cubic root of 9218664 is about 209.6795111388.

The spelling of 9218664 in words is "nine million, two hundred eighteen thousand, six hundred sixty-four".