328809361 has 2 divisors, whose sum is σ = 328809362. Its totient is φ = 328809360.

The previous prime is 328809329. The next prime is 328809373. The reversal of 328809361 is 163908823.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 281199361 + 47610000 = 16769^2 + 6900^2 .

It is a cyclic number.

It is not a de Polignac number, because 328809361 - 2⁵ = 328809329 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (328809961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 164404680 + 164404681.

It is an arithmetic number, because the mean of its divisors is an integer number (164404681).

Almost surely, 2^328809361 is an apocalyptic number.

It is an amenable number.

328809361 is a deficient number, since it is larger than the sum of its proper divisors (1).

328809361 is an equidigital number, since it uses as much as digits as its factorization.

328809361 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 62208, while the sum is 40.

The square root of 328809361 is about 18133.1012515786. The cubic root of 328809361 is about 690.2102285968.

The spelling of 328809361 in words is "three hundred twenty-eight million, eight hundred nine thousand, three hundred sixty-one".