328578789 has 16 divisors (see below), whose sum is σ = 546209280. Its totient is φ = 170690160.

The previous prime is 328578779. The next prime is 328578821. The reversal of 328578789 is 987875823.

It is a happy number.

It is not a de Polignac number, because 328578789 - 2⁴ = 328578773 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (328578749) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 710979 + ... + 711440.

It is an arithmetic number, because the mean of its divisors is an integer number (34138080).

Almost surely, 2^328578789 is an apocalyptic number.

It is an amenable number.

328578789 is a deficient number, since it is larger than the sum of its proper divisors (217630491).

328578789 is a wasteful number, since it uses less digits than its factorization.

328578789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1422440.

The product of its digits is 6773760, while the sum is 57.

The square root of 328578789 is about 18126.7423714246. The cubic root of 328578789 is about 690.0488581240.

The spelling of 328578789 in words is "three hundred twenty-eight million, five hundred seventy-eight thousand, seven hundred eighty-nine".