326864 has 20 divisors (see below), whose sum is σ = 654720. Its totient is φ = 157920.

The previous prime is 326863. The next prime is 326867. The reversal of 326864 is 468623.

326864 is an admirable number.

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 326864.

It is not an unprimeable number, because it can be changed into a prime (326863) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 167 + ... + 825.

It is an arithmetic number, because the mean of its divisors is an integer number (32736).

2³²⁶⁸⁶⁴ 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 326864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (327360).

326864 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

326864 is a wasteful number, since it uses less digits than its factorization.

326864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 698 (or 692 counting only the distinct ones).

The product of its digits is 6912, while the sum is 29.

The square root of 326864 is about 571.7202112922. The cubic root of 326864 is about 68.8846353407.

The spelling of 326864 in words is "three hundred twenty-six thousand, eight hundred sixty-four".