324321 has 4 divisors (see below), whose sum is σ = 432432. Its totient is φ = 216212.

The previous prime is 324319. The next prime is 324329. The reversal of 324321 is 123423.

324321 is nontrivially palindromic in base 15.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 123423 = 3 ⋅41141.

It is a cyclic number.

It is not a de Polignac number, because 324321 - 2¹ = 324319 is a prime.

It is a super-2 number, since 2×324321² = 210368222082, which contains 22 as substring.

It is a D-number.

It is a self number, because there is not a number n which added to its sum of digits gives 324321.

It is not an unprimeable number, because it can be changed into a prime (324329) 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, 54051 + ... + 54056.

It is an arithmetic number, because the mean of its divisors is an integer number (108108).

2³²⁴³²¹ is an apocalyptic number.

It is an amenable number.

324321 is a deficient number, since it is larger than the sum of its proper divisors (108111).

324321 is a wasteful number, since it uses less digits than its factorization.

324321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108110.

The product of its digits is 144, while the sum is 15.

The square root of 324321 is about 569.4918787832. The cubic root of 324321 is about 68.7055293673.

Adding to 324321 its reverse (123423), we get a palindrome (447744).

The spelling of 324321 in words is "three hundred twenty-four thousand, three hundred twenty-one", and thus it is an iban number.