328489 has 8 divisors (see below), whose sum is σ = 379008. Its totient is φ = 278880.

The previous prime is 328481. The next prime is 328511. The reversal of 328489 is 984823.

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

It is not a de Polignac number, because 328489 - 2³ = 328481 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (328481) 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 in 7 ways as a sum of consecutive naturals, for example, 1029 + ... + 1309.

It is an arithmetic number, because the mean of its divisors is an integer number (47376).

2³²⁸⁴⁸⁹ is an apocalyptic number.

It is an amenable number.

328489 is a deficient number, since it is larger than the sum of its proper divisors (50519).

328489 is a wasteful number, since it uses less digits than its factorization.

328489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 455.

The product of its digits is 13824, while the sum is 34.

The square root of 328489 is about 573.1395990507. The cubic root of 328489 is about 68.9985997055.

Subtracting from 328489 its sum of digits (34), we obtain a triangular number (328455 = T₈₁₀).

The spelling of 328489 in words is "three hundred twenty-eight thousand, four hundred eighty-nine".