328000909 has 2 divisors, whose sum is σ = 328000910. Its totient is φ = 328000908.

The previous prime is 328000891. The next prime is 328000931. The reversal of 328000909 is 909000823.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 315062500 + 12938409 = 17750^2 + 3597^2 .

It is a cyclic number.

It is not a de Polignac number, because 328000909 - 2⁵ = 328000877 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (328000009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 164000454 + 164000455.

It is an arithmetic number, because the mean of its divisors is an integer number (164000455).

Almost surely, 2^328000909 is an apocalyptic number.

It is an amenable number.

328000909 is a deficient number, since it is larger than the sum of its proper divisors (1).

328000909 is an equidigital number, since it uses as much as digits as its factorization.

328000909 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3888, while the sum is 31.

The square root of 328000909 is about 18110.7953718217. The cubic root of 328000909 is about 689.6440851551.

The spelling of 328000909 in words is "three hundred twenty-eight million, nine hundred nine", and thus it is an aban number.