328703717 has 2 divisors, whose sum is σ = 328703718. Its totient is φ = 328703716.

The previous prime is 328703701. The next prime is 328703729. The reversal of 328703717 is 717307823.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 308037601 + 20666116 = 17551^2 + 4546^2 .

It is an emirp because it is prime and its reverse (717307823) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 328703717 - 2⁴ = 328703701 is a prime.

It is a super-2 number, since 2×328703717² = 216092267139232178, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (328703117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 164351858 + 164351859.

It is an arithmetic number, because the mean of its divisors is an integer number (164351859).

Almost surely, 2^328703717 is an apocalyptic number.

It is an amenable number.

328703717 is a deficient number, since it is larger than the sum of its proper divisors (1).

328703717 is an equidigital number, since it uses as much as digits as its factorization.

328703717 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 49392, while the sum is 38.

The square root of 328703717 is about 18130.1880023347. The cubic root of 328703717 is about 690.1363008760.

The spelling of 328703717 in words is "three hundred twenty-eight million, seven hundred three thousand, seven hundred seventeen".