328869 has 6 divisors (see below), whose sum is σ = 475046. Its totient is φ = 219240.

The previous prime is 328849. The next prime is 328883. The reversal of 328869 is 968823.

It can be written as a sum of positive squares in only one way, i.e., 324900 + 3969 = 570^2 + 63^2 .

It is not a de Polignac number, because 328869 - 2⁵ = 328837 is a prime.

It is a super-2 number, since 2×328869² = 216309638322, which contains 22 as substring.

It is a Duffinian number.

It is a nialpdrome in base 9.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (328829) 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 5 ways as a sum of consecutive naturals, for example, 18262 + ... + 18279.

2³²⁸⁸⁶⁹ is an apocalyptic number.

It is an amenable number.

328869 is a deficient number, since it is larger than the sum of its proper divisors (146177).

328869 is a wasteful number, since it uses less digits than its factorization.

328869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36547 (or 36544 counting only the distinct ones).

The product of its digits is 20736, while the sum is 36.

The square root of 328869 is about 573.4710106012. The cubic root of 328869 is about 69.0251955875.

The spelling of 328869 in words is "three hundred twenty-eight thousand, eight hundred sixty-nine".