328965 has 32 divisors (see below), whose sum is σ = 650496. Its totient is φ = 138240.

The previous prime is 328961. The next prime is 328981. The reversal of 328965 is 569823.

It is a happy number.

328965 is nontrivially palindromic in base 2, base 4 and base 16.

It is not a de Polignac number, because 328965 - 2² = 328961 is a prime.

328965 is an undulating number in base 16.

It is a Curzon number.

It is a zygodrome in base 4.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 328965.

It is not an unprimeable number, because it can be changed into a prime (328961) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1245 + ... + 1485.

It is an arithmetic number, because the mean of its divisors is an integer number (20328).

2³²⁸⁹⁶⁵ is an apocalyptic number.

328965 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

328965 is a deficient number, since it is larger than the sum of its proper divisors (321531).

328965 is a wasteful number, since it uses less digits than its factorization.

328965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 269.

The product of its digits is 12960, while the sum is 33.

The square root of 328965 is about 573.5547053246. The cubic root of 328965 is about 69.0319113053.

The spelling of 328965 in words is "three hundred twenty-eight thousand, nine hundred sixty-five".