328239313 has 4 divisors (see below), whose sum is σ = 339557940. Its totient is φ = 316920688.

The previous prime is 328239311. The next prime is 328239323. The reversal of 328239313 is 313932823.

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 75047569 + 253191744 = 8663^2 + 15912^2 .

It is a cyclic number.

It is not a de Polignac number, because 328239313 - 2¹ = 328239311 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (328239311) 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 3 ways as a sum of consecutive naturals, for example, 5659270 + ... + 5659327.

It is an arithmetic number, because the mean of its divisors is an integer number (84889485).

Almost surely, 2^328239313 is an apocalyptic number.

It is an amenable number.

328239313 is a deficient number, since it is larger than the sum of its proper divisors (11318627).

328239313 is a wasteful number, since it uses less digits than its factorization.

328239313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11318626.

The product of its digits is 23328, while the sum is 34.

The square root of 328239313 is about 18117.3759965399. The cubic root of 328239313 is about 689.8111315320.

The spelling of 328239313 in words is "three hundred twenty-eight million, two hundred thirty-nine thousand, three hundred thirteen".