328643207 has 2 divisors, whose sum is σ = 328643208. Its totient is φ = 328643206.

The previous prime is 328643197. The next prime is 328643219. The reversal of 328643207 is 702346823.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 328643207 - 2⁶ = 328643143 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (328643267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 164321603 + 164321604.

It is an arithmetic number, because the mean of its divisors is an integer number (164321604).

Almost surely, 2^328643207 is an apocalyptic number.

328643207 is a deficient number, since it is larger than the sum of its proper divisors (1).

328643207 is an equidigital number, since it uses as much as digits as its factorization.

328643207 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48384, while the sum is 35.

The square root of 328643207 is about 18128.5191618069. The cubic root of 328643207 is about 690.0939499602.

The spelling of 328643207 in words is "three hundred twenty-eight million, six hundred forty-three thousand, two hundred seven".