328889 has 8 divisors (see below), whose sum is σ = 371520. Its totient is φ = 288400.

The previous prime is 328883. The next prime is 328891. The reversal of 328889 is 988823.

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 328889 - 2⁸ = 328633 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (328883) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 197 + ... + 834.

It is an arithmetic number, because the mean of its divisors is an integer number (46440).

2³²⁸⁸⁸⁹ is an apocalyptic number.

It is an amenable number.

328889 is a deficient number, since it is larger than the sum of its proper divisors (42631).

328889 is a wasteful number, since it uses less digits than its factorization.

328889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1071.

The product of its digits is 27648, while the sum is 38.

The square root of 328889 is about 573.4884480092. The cubic root of 328889 is about 69.0265948032.

The spelling of 328889 in words is "three hundred twenty-eight thousand, eight hundred eighty-nine".