328673939 has 4 divisors (see below), whose sum is σ = 358553400. Its totient is φ = 298794480.

The previous prime is 328673929. The next prime is 328673957. The reversal of 328673939 is 939376823.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-328673939 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (328673909) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14939714 + ... + 14939735.

It is an arithmetic number, because the mean of its divisors is an integer number (89638350).

Almost surely, 2^328673939 is an apocalyptic number.

328673939 is a deficient number, since it is larger than the sum of its proper divisors (29879461).

328673939 is a wasteful number, since it uses less digits than its factorization.

328673939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29879460.

The product of its digits is 1469664, while the sum is 50.

The square root of 328673939 is about 18129.3667567293. The cubic root of 328673939 is about 690.1154599197.

The spelling of 328673939 in words is "three hundred twenty-eight million, six hundred seventy-three thousand, nine hundred thirty-nine".