328459609 has 2 divisors, whose sum is σ = 328459610. Its totient is φ = 328459608.

The previous prime is 328459589. The next prime is 328459627. The reversal of 328459609 is 906954823.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 294877584 + 33582025 = 17172^2 + 5795^2 .

It is an emirp because it is prime and its reverse (906954823) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 328459609 - 2⁵ = 328459577 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (328459639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 164229804 + 164229805.

It is an arithmetic number, because the mean of its divisors is an integer number (164229805).

Almost surely, 2^328459609 is an apocalyptic number.

It is an amenable number.

328459609 is a deficient number, since it is larger than the sum of its proper divisors (1).

328459609 is an equidigital number, since it uses as much as digits as its factorization.

328459609 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 466560, while the sum is 46.

The square root of 328459609 is about 18123.4546651570. The cubic root of 328459609 is about 689.9654179966.

The spelling of 328459609 in words is "three hundred twenty-eight million, four hundred fifty-nine thousand, six hundred nine".