328428361 has 2 divisors, whose sum is σ = 328428362. Its totient is φ = 328428360.

The previous prime is 328428349. The next prime is 328428371. The reversal of 328428361 is 163824823.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 290532025 + 37896336 = 17045^2 + 6156^2 .

It is a cyclic number.

It is not a de Polignac number, because 328428361 - 2⁵ = 328428329 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 328428361.

It is not a weakly prime, because it can be changed into another prime (328428311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 164214180 + 164214181.

It is an arithmetic number, because the mean of its divisors is an integer number (164214181).

Almost surely, 2^328428361 is an apocalyptic number.

It is an amenable number.

328428361 is a deficient number, since it is larger than the sum of its proper divisors (1).

328428361 is an equidigital number, since it uses as much as digits as its factorization.

328428361 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 55296, while the sum is 37.

The square root of 328428361 is about 18122.5925573578. The cubic root of 328428361 is about 689.9435373528.

The spelling of 328428361 in words is "three hundred twenty-eight million, four hundred twenty-eight thousand, three hundred sixty-one".