328710647 has 2 divisors, whose sum is σ = 328710648. Its totient is φ = 328710646.

The previous prime is 328710631. The next prime is 328710667. The reversal of 328710647 is 746017823.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 328710647 - 2⁴ = 328710631 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 328710647.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (328710667) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 164355323 + 164355324.

It is an arithmetic number, because the mean of its divisors is an integer number (164355324).

Almost surely, 2^328710647 is an apocalyptic number.

328710647 is a deficient number, since it is larger than the sum of its proper divisors (1).

328710647 is an equidigital number, since it uses as much as digits as its factorization.

328710647 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 56448, while the sum is 38.

The square root of 328710647 is about 18130.3791190366. The cubic root of 328710647 is about 690.1411508475.

The spelling of 328710647 in words is "three hundred twenty-eight million, seven hundred ten thousand, six hundred forty-seven".