328243439 has 2 divisors, whose sum is σ = 328243440. Its totient is φ = 328243438.

The previous prime is 328243423. The next prime is 328243451. The reversal of 328243439 is 934342823.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 328243439 - 2⁴ = 328243423 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (328243459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 164121719 + 164121720.

It is an arithmetic number, because the mean of its divisors is an integer number (164121720).

Almost surely, 2^328243439 is an apocalyptic number.

328243439 is a deficient number, since it is larger than the sum of its proper divisors (1).

328243439 is an equidigital number, since it uses as much as digits as its factorization.

328243439 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 124416, while the sum is 38.

The square root of 328243439 is about 18117.4898647688. The cubic root of 328243439 is about 689.8140218508.

It can be divided in two parts, 32824 and 3439, that added together give a palindrome (36263).

The spelling of 328243439 in words is "three hundred twenty-eight million, two hundred forty-three thousand, four hundred thirty-nine".