328495809 has 8 divisors (see below), whose sum is σ = 452123392. Its totient is φ = 211932720.

The previous prime is 328495801. The next prime is 328495829. The reversal of 328495809 is 908594823.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 328495809 - 2³ = 328495801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (328495801) 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 in 7 ways as a sum of consecutive naturals, for example, 1766014 + ... + 1766199.

It is an arithmetic number, because the mean of its divisors is an integer number (56515424).

Almost surely, 2^328495809 is an apocalyptic number.

It is an amenable number.

328495809 is a deficient number, since it is larger than the sum of its proper divisors (123627583).

328495809 is a wasteful number, since it uses less digits than its factorization.

328495809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3532247.

The product of its (nonzero) digits is 622080, while the sum is 48.

The square root of 328495809 is about 18124.4533434805. The cubic root of 328495809 is about 689.9907644216.

The spelling of 328495809 in words is "three hundred twenty-eight million, four hundred ninety-five thousand, eight hundred nine".