326221 has 8 divisors (see below), whose sum is σ = 385920. Its totient is φ = 269808.

The previous prime is 326219. The next prime is 326251. The reversal of 326221 is 122623.

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

It is not a de Polignac number, because 326221 - 2¹ = 326219 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 326195 and 326204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (326251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 601 + ... + 1006.

It is an arithmetic number, because the mean of its divisors is an integer number (48240).

2³²⁶²²¹ is an apocalyptic number.

It is an amenable number.

326221 is a deficient number, since it is larger than the sum of its proper divisors (59699).

326221 is a wasteful number, since it uses less digits than its factorization.

326221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1643.

The product of its digits is 144, while the sum is 16.

The square root of 326221 is about 571.1575964653. The cubic root of 326221 is about 68.8394362199.

Adding to 326221 its reverse (122623), we get a palindrome (448844).

It can be divided in two parts, 32622 and 1, that added together give a palindrome (32623).

The spelling of 326221 in words is "three hundred twenty-six thousand, two hundred twenty-one".