328919377 has 2 divisors, whose sum is σ = 328919378. Its totient is φ = 328919376.

The previous prime is 328919333. The next prime is 328919401. The reversal of 328919377 is 773919823.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 261662976 + 67256401 = 16176^2 + 8201^2 .

It is an emirp because it is prime and its reverse (773919823) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-328919377 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 328919377.

It is not a weakly prime, because it can be changed into another prime (328910377) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 164459688 + 164459689.

It is an arithmetic number, because the mean of its divisors is an integer number (164459689).

Almost surely, 2^328919377 is an apocalyptic number.

It is an amenable number.

328919377 is a deficient number, since it is larger than the sum of its proper divisors (1).

328919377 is an equidigital number, since it uses as much as digits as its factorization.

328919377 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 571536, while the sum is 49.

The square root of 328919377 is about 18136.1345661086. The cubic root of 328919377 is about 690.2871989330.

The spelling of 328919377 in words is "three hundred twenty-eight million, nine hundred nineteen thousand, three hundred seventy-seven".