327221 has 8 divisors (see below), whose sum is σ = 350784. Its totient is φ = 304480.

The previous prime is 327211. The next prime is 327247. The reversal of 327221 is 122723.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-327221 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 327221.

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 327221.

It is not an unprimeable number, because it can be changed into a prime (327211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 770 + ... + 1116.

It is an arithmetic number, because the mean of its divisors is an integer number (43848).

2³²⁷²²¹ is an apocalyptic number.

It is an amenable number.

327221 is a deficient number, since it is larger than the sum of its proper divisors (23563).

327221 is a wasteful number, since it uses less digits than its factorization.

327221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 411.

The product of its digits is 168, while the sum is 17.

The square root of 327221 is about 572.0323417430. The cubic root of 327221 is about 68.9097047551.

Adding to 327221 its reverse (122723), we get a palindrome (449944).

It can be divided in two parts, 32722 and 1, that added together give a palindrome (32723).

The spelling of 327221 in words is "three hundred twenty-seven thousand, two hundred twenty-one", and thus it is an iban number.