328288969 has 2 divisors, whose sum is σ = 328288970. Its totient is φ = 328288968.

The previous prime is 328288967. The next prime is 328288981. The reversal of 328288969 is 969882823.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 190108944 + 138180025 = 13788^2 + 11755^2 .

It is a cyclic number.

It is not a de Polignac number, because 328288969 - 2¹ = 328288967 is a prime.

It is a super-2 number, since 2×328288969² = 215547294334165922, which contains 22 as substring.

Together with 328288967, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (328288963) 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, 164144484 + 164144485.

It is an arithmetic number, because the mean of its divisors is an integer number (164144485).

Almost surely, 2^328288969 is an apocalyptic number.

It is an amenable number.

328288969 is a deficient number, since it is larger than the sum of its proper divisors (1).

328288969 is an equidigital number, since it uses as much as digits as its factorization.

328288969 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2985984, while the sum is 55.

The square root of 328288969 is about 18118.7463418416. The cubic root of 328288969 is about 689.8459146237.

The spelling of 328288969 in words is "three hundred twenty-eight million, two hundred eighty-eight thousand, nine hundred sixty-nine".