326643325 has 6 divisors (see below), whose sum is σ = 405037754. Its totient is φ = 261314640.

The previous prime is 326643319. The next prime is 326643347. The reversal of 326643325 is 523346623.

It can be written as a sum of positive squares in 3 ways, for example, as 41100921 + 285542404 = 6411^2 + 16898^2 .

It is not a de Polignac number, because 326643325 - 2⁷ = 326643197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6532842 + ... + 6532891.

Almost surely, 2^326643325 is an apocalyptic number.

It is an amenable number.

326643325 is a deficient number, since it is larger than the sum of its proper divisors (78394429).

326643325 is a wasteful number, since it uses less digits than its factorization.

326643325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13065743 (or 13065738 counting only the distinct ones).

The product of its digits is 77760, while the sum is 34.

The square root of 326643325 is about 18073.2765430068. The cubic root of 326643325 is about 688.6912987148.

Adding to 326643325 its reverse (523346623), we get a palindrome (849989948).

The spelling of 326643325 in words is "three hundred twenty-six million, six hundred forty-three thousand, three hundred twenty-five".