328497313 has 2 divisors, whose sum is σ = 328497314. Its totient is φ = 328497312.

The previous prime is 328497287. The next prime is 328497319. The reversal of 328497313 is 313794823.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 320696464 + 7800849 = 17908^2 + 2793^2 .

It is a cyclic number.

It is not a de Polignac number, because 328497313 - 2²⁵ = 294942881 is a prime.

It is not a weakly prime, because it can be changed into another prime (328497319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 164248656 + 164248657.

It is an arithmetic number, because the mean of its divisors is an integer number (164248657).

Almost surely, 2^328497313 is an apocalyptic number.

It is an amenable number.

328497313 is a deficient number, since it is larger than the sum of its proper divisors (1).

328497313 is an equidigital number, since it uses as much as digits as its factorization.

328497313 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 108864, while the sum is 40.

The square root of 328497313 is about 18124.4948343395. The cubic root of 328497313 is about 689.9918174483.

The spelling of 328497313 in words is "three hundred twenty-eight million, four hundred ninety-seven thousand, three hundred thirteen".