328032769 has 2 divisors, whose sum is σ = 328032770. Its totient is φ = 328032768.

The previous prime is 328032721. The next prime is 328032781. The reversal of 328032769 is 967230823.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 272679169 + 55353600 = 16513^2 + 7440^2 .

It is a cyclic number.

It is not a de Polignac number, because 328032769 - 2⁷ = 328032641 is a prime.

It is a super-2 number, since 2×328032769² = 215210995075614722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (328038769) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 164016384 + 164016385.

It is an arithmetic number, because the mean of its divisors is an integer number (164016385).

Almost surely, 2^328032769 is an apocalyptic number.

It is an amenable number.

328032769 is a deficient number, since it is larger than the sum of its proper divisors (1).

328032769 is an equidigital number, since it uses as much as digits as its factorization.

328032769 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108864, while the sum is 40.

The square root of 328032769 is about 18111.6749363498. The cubic root of 328032769 is about 689.6664137001. Note that the first 3 decimals are identical.

The spelling of 328032769 in words is "three hundred twenty-eight million, thirty-two thousand, seven hundred sixty-nine".