326664 has 48 divisors (see below), whose sum is σ = 955500. Its totient is φ = 100224.

The previous prime is 326663. The next prime is 326681. The reversal of 326664 is 466623.

326664 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 324900 + 1764 = 570^2 + 42^2 .

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

It is not an unprimeable number, because it can be changed into a prime (326663) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 762 + ... + 1110.

2³²⁶⁶⁶⁴ 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 326664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (477750).

326664 is an abundant number, since it is smaller than the sum of its proper divisors (628836).

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

326664 is a wasteful number, since it uses less digits than its factorization.

326664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 374 (or 367 counting only the distinct ones).

The product of its digits is 5184, while the sum is 27.

The square root of 326664 is about 571.5452737973. The cubic root of 326664 is about 68.8705828725.

It can be divided in two parts, 326 and 664, that added together give a triangular number (990 = T₄₄).

The spelling of 326664 in words is "three hundred twenty-six thousand, six hundred sixty-four".