326723 has 4 divisors (see below), whose sum is σ = 345960. Its totient is φ = 307488.

The previous prime is 326707. The next prime is 326737. The reversal of 326723 is 327623.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 327623 = 139 ⋅2357.

It is a cyclic number.

It is not a de Polignac number, because 326723 - 2⁴ = 326707 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (326773) 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, 9593 + ... + 9626.

It is an arithmetic number, because the mean of its divisors is an integer number (86490).

2³²⁶⁷²³ is an apocalyptic number.

326723 is a deficient number, since it is larger than the sum of its proper divisors (19237).

326723 is a wasteful number, since it uses less digits than its factorization.

326723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19236.

The product of its digits is 1512, while the sum is 23.

The square root of 326723 is about 571.5968859257. The cubic root of 326723 is about 68.8747289469.

Subtracting 326723 from its reverse (327623), we obtain a square (900 = 30²).

The spelling of 326723 in words is "three hundred twenty-six thousand, seven hundred twenty-three".