328705211 has 2 divisors, whose sum is σ = 328705212. Its totient is φ = 328705210.

The previous prime is 328705193. The next prime is 328705219. The reversal of 328705211 is 112507823.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 328705211 - 2⁶ = 328705147 is a prime.

It is not a weakly prime, because it can be changed into another prime (328705219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 164352605 + 164352606.

It is an arithmetic number, because the mean of its divisors is an integer number (164352606).

Almost surely, 2^328705211 is an apocalyptic number.

328705211 is a deficient number, since it is larger than the sum of its proper divisors (1).

328705211 is an equidigital number, since it uses as much as digits as its factorization.

328705211 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3360, while the sum is 29.

The square root of 328705211 is about 18130.2292042875. The cubic root of 328705211 is about 690.1373464600.

The spelling of 328705211 in words is "three hundred twenty-eight million, seven hundred five thousand, two hundred eleven".