327445213 has 4 divisors (see below), whose sum is σ = 327628828. Its totient is φ = 327261600.

The previous prime is 327445201. The next prime is 327445247. The reversal of 327445213 is 312544723.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 105226564 + 222218649 = 10258^2 + 14907^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-327445213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (327445513) 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, 89106 + ... + 92707.

It is an arithmetic number, because the mean of its divisors is an integer number (81907207).

Almost surely, 2^327445213 is an apocalyptic number.

It is an amenable number.

327445213 is a deficient number, since it is larger than the sum of its proper divisors (183615).

327445213 is a wasteful number, since it uses less digits than its factorization.

327445213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183614.

The product of its digits is 20160, while the sum is 31.

The square root of 327445213 is about 18095.4473003571. The cubic root of 327445213 is about 689.2544022042.

Adding to 327445213 its reverse (312544723), we get a palindrome (639989936).

The spelling of 327445213 in words is "three hundred twenty-seven million, four hundred forty-five thousand, two hundred thirteen".