328894213 has 2 divisors, whose sum is σ = 328894214. Its totient is φ = 328894212.

The previous prime is 328894193. The next prime is 328894219. The reversal of 328894213 is 312498823.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 228553924 + 100340289 = 15118^2 + 10017^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-328894213 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (328894219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 164447106 + 164447107.

It is an arithmetic number, because the mean of its divisors is an integer number (164447107).

Almost surely, 2^328894213 is an apocalyptic number.

It is an amenable number.

328894213 is a deficient number, since it is larger than the sum of its proper divisors (1).

328894213 is an equidigital number, since it uses as much as digits as its factorization.

328894213 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 82944, while the sum is 40.

The square root of 328894213 is about 18135.4407997159. The cubic root of 328894213 is about 690.2695949939.

The spelling of 328894213 in words is "three hundred twenty-eight million, eight hundred ninety-four thousand, two hundred thirteen".