328855321 has 8 divisors (see below), whose sum is σ = 334736640. Its totient is φ = 322984368.

The previous prime is 328855313. The next prime is 328855337. The reversal of 328855321 is 123558823.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 328855321 - 2³ = 328855313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (328855391) 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 7 ways as a sum of consecutive naturals, for example, 90675 + ... + 94231.

It is an arithmetic number, because the mean of its divisors is an integer number (41842080).

Almost surely, 2^328855321 is an apocalyptic number.

It is an amenable number.

328855321 is a deficient number, since it is larger than the sum of its proper divisors (5881319).

328855321 is a wasteful number, since it uses less digits than its factorization.

328855321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5183.

The product of its digits is 57600, while the sum is 37.

The square root of 328855321 is about 18134.3685029284. The cubic root of 328855321 is about 690.2423856134.

The spelling of 328855321 in words is "three hundred twenty-eight million, eight hundred fifty-five thousand, three hundred twenty-one".