328882321 has 8 divisors (see below), whose sum is σ = 332556840. Its totient is φ = 325219968.

The previous prime is 328882303. The next prime is 328882339. The reversal of 328882321 is 123288823.

It is an interprime number because it is at equal distance from previous prime (328882303) and next prime (328882339).

It can be written as a sum of positive squares in 4 ways, for example, as 4096 + 328878225 = 64^2 + 18135^2 .

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 328882321 - 2¹¹ = 328880273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (328885321) 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 7 ways as a sum of consecutive naturals, for example, 58005 + ... + 63421.

It is an arithmetic number, because the mean of its divisors is an integer number (41569605).

Almost surely, 2^328882321 is an apocalyptic number.

It is an amenable number.

328882321 is a deficient number, since it is larger than the sum of its proper divisors (3674519).

328882321 is a wasteful number, since it uses less digits than its factorization.

328882321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6083.

The product of its digits is 36864, while the sum is 37.

The square root of 328882321 is about 18135.1129304452. The cubic root of 328882321 is about 690.2612754141.

The spelling of 328882321 in words is "three hundred twenty-eight million, eight hundred eighty-two thousand, three hundred twenty-one".