323664 has 40 divisors (see below), whose sum is σ = 913632. Its totient is φ = 97920.

The previous prime is 323651. The next prime is 323699. The reversal of 323664 is 466323.

It is a Harshad number since it is a multiple of its sum of digits (24).

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

It is a d-powerful number, because it can be written as 3⁷ + 2⁵ + 6² + 3¹⁰ + 6³ + 4⁹ .

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 323664.

It is an unprimeable number.

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, 222 + ... + 834.

2³²³⁶⁶⁴ 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 323664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (456816).

323664 is an abundant number, since it is smaller than the sum of its proper divisors (589968).

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

323664 is a wasteful number, since it uses less digits than its factorization.

323664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 635 (or 629 counting only the distinct ones).

The product of its digits is 2592, while the sum is 24.

The square root of 323664 is about 568.9147563563. The cubic root of 323664 is about 68.6591041200.

Adding to 323664 its reverse (466323), we get a palindrome (789987).

The spelling of 323664 in words is "three hundred twenty-three thousand, six hundred sixty-four".