328816417 has 2 divisors, whose sum is σ = 328816418. Its totient is φ = 328816416.

The previous prime is 328816379. The next prime is 328816427. The reversal of 328816417 is 714618823.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 297355536 + 31460881 = 17244^2 + 5609^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-328816417 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 328816417.

It is not a weakly prime, because it can be changed into another prime (328816427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 164408208 + 164408209.

It is an arithmetic number, because the mean of its divisors is an integer number (164408209).

Almost surely, 2^328816417 is an apocalyptic number.

It is an amenable number.

328816417 is a deficient number, since it is larger than the sum of its proper divisors (1).

328816417 is an equidigital number, since it uses as much as digits as its factorization.

328816417 is an evil number, because the sum of its binary digits is even.

The product of its digits is 64512, while the sum is 40.

The square root of 328816417 is about 18133.2958118484. The cubic root of 328816417 is about 690.2151656912.

The spelling of 328816417 in words is "three hundred twenty-eight million, eight hundred sixteen thousand, four hundred seventeen".