328858939 has 4 divisors (see below), whose sum is σ = 329260320. Its totient is φ = 328457560.

The previous prime is 328858913. The next prime is 328858949. The reversal of 328858939 is 939858823.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 939858823 = 229 ⋅4104187.

It is a cyclic number.

It is not a de Polignac number, because 328858939 - 2¹³ = 328850747 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 328858939.

It is not an unprimeable number, because it can be changed into a prime (328858949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 199459 + ... + 201100.

It is an arithmetic number, because the mean of its divisors is an integer number (82315080).

Almost surely, 2^328858939 is an apocalyptic number.

328858939 is a deficient number, since it is larger than the sum of its proper divisors (401381).

328858939 is an equidigital number, since it uses as much as digits as its factorization.

328858939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 401380.

The product of its digits is 3732480, while the sum is 55.

The square root of 328858939 is about 18134.4682579887. The cubic root of 328858939 is about 690.2449169067.

The spelling of 328858939 in words is "three hundred twenty-eight million, eight hundred fifty-eight thousand, nine hundred thirty-nine".