328814985 has 32 divisors (see below), whose sum is σ = 550010880. Its totient is φ = 167544000.

The previous prime is 328814977. The next prime is 328814989. The reversal of 328814985 is 589418823.

It is not a de Polignac number, because 328814985 - 2³ = 328814977 is a prime.

It is not an unprimeable number, because it can be changed into a prime (328814989) 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 31 ways as a sum of consecutive naturals, for example, 32260 + ... + 41210.

It is an arithmetic number, because the mean of its divisors is an integer number (17187840).

Almost surely, 2^328814985 is an apocalyptic number.

It is an amenable number.

328814985 is a deficient number, since it is larger than the sum of its proper divisors (221195895).

328814985 is a wasteful number, since it uses less digits than its factorization.

328814985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9069.

The product of its digits is 552960, while the sum is 48.

The square root of 328814985 is about 18133.2563264296. The cubic root of 328814985 is about 690.2141637243.

The spelling of 328814985 in words is "three hundred twenty-eight million, eight hundred fourteen thousand, nine hundred eighty-five".