328315009 has 4 divisors (see below), whose sum is σ = 358161840. Its totient is φ = 298468180.

The previous prime is 328315007. The next prime is 328315021. The reversal of 328315009 is 900513823.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 328315009 - 2¹ = 328315007 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (328315007) 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 in 3 ways as a sum of consecutive naturals, for example, 14923399 + ... + 14923420.

It is an arithmetic number, because the mean of its divisors is an integer number (89540460).

Almost surely, 2^328315009 is an apocalyptic number.

It is an amenable number.

328315009 is a deficient number, since it is larger than the sum of its proper divisors (29846831).

328315009 is a wasteful number, since it uses less digits than its factorization.

328315009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29846830.

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 328315009 is about 18119.4649203557. The cubic root of 328315009 is about 689.8641537508.

The spelling of 328315009 in words is "three hundred twenty-eight million, three hundred fifteen thousand, nine".