396328489 has 2 divisors, whose sum is σ = 396328490. Its totient is φ = 396328488.

The previous prime is 396328451. The next prime is 396328511. The reversal of 396328489 is 984823693.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 396328464 + 25 = 19908^2 + 5^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-396328489 is a prime.

It is not a weakly prime, because it can be changed into another prime (396328189) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 198164244 + 198164245.

It is an arithmetic number, because the mean of its divisors is an integer number (198164245).

Almost surely, 2^396328489 is an apocalyptic number.

It is an amenable number.

396328489 is a deficient number, since it is larger than the sum of its proper divisors (1).

396328489 is an equidigital number, since it uses as much as digits as its factorization.

396328489 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2239488, while the sum is 52.

The square root of 396328489 is about 19908.0006278883. Note that the first 3 decimals coincide. The cubic root of 396328489 is about 734.5450399891.

The spelling of 396328489 in words is "three hundred ninety-six million, three hundred twenty-eight thousand, four hundred eighty-nine".