328789 has 2 divisors, whose sum is σ = 328790. Its totient is φ = 328788.

The previous prime is 328787. The next prime is 328813. The reversal of 328789 is 987823.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 209764 + 119025 = 458^2 + 345^2 .

It is a cyclic number.

It is not a de Polignac number, because 328789 - 2¹ = 328787 is a prime.

Together with 328787, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (328781) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 164394 + 164395.

It is an arithmetic number, because the mean of its divisors is an integer number (164395).

2³²⁸⁷⁸⁹ is an apocalyptic number.

It is an amenable number.

328789 is a deficient number, since it is larger than the sum of its proper divisors (1).

328789 is an equidigital number, since it uses as much as digits as its factorization.

328789 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 24192, while the sum is 37.

The square root of 328789 is about 573.4012556666. The cubic root of 328789 is about 69.0195981577.

The spelling of 328789 in words is "three hundred twenty-eight thousand, seven hundred eighty-nine".