324221 has 4 divisors (see below), whose sum is σ = 325500. Its totient is φ = 322944.

The previous prime is 324217. The next prime is 324223. The reversal of 324221 is 122423.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 122423 = 7 ⋅17489.

It can be written as a sum of positive squares in 2 ways, for example, as 98596 + 225625 = 314^2 + 475^2 .

It is a cyclic number.

It is not a de Polignac number, because 324221 - 2² = 324217 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 324196 and 324205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (324223) 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, 116 + ... + 813.

It is an arithmetic number, because the mean of its divisors is an integer number (81375).

2³²⁴²²¹ is an apocalyptic number.

It is an amenable number.

324221 is a deficient number, since it is larger than the sum of its proper divisors (1279).

324221 is an equidigital number, since it uses as much as digits as its factorization.

324221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1278.

The product of its digits is 96, while the sum is 14.

The square root of 324221 is about 569.4040744498. The cubic root of 324221 is about 68.6984671674.

Adding to 324221 its reverse (122423), we get a palindrome (446644).

It can be divided in two parts, 32422 and 1, that added together give a palindrome (32423).

The spelling of 324221 in words is "three hundred twenty-four thousand, two hundred twenty-one", and thus it is an iban number.