328287 has 16 divisors (see below), whose sum is σ = 477792. Its totient is φ = 199680.

The previous prime is 328283. The next prime is 328291. The reversal of 328287 is 782823.

328287 is nontrivially palindromic in base 13.

It is an interprime number because it is at equal distance from previous prime (328283) and next prime (328291).

It is not a de Polignac number, because 328287 - 2² = 328283 is a prime.

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 328287.

It is not an unprimeable number, because it can be changed into a prime (328283) by changing a digit.

It is an upside-down number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2013 + ... + 2169.

It is an arithmetic number, because the mean of its divisors is an integer number (29862).

2³²⁸²⁸⁷ is an apocalyptic number.

328287 is a deficient number, since it is larger than the sum of its proper divisors (149505).

328287 is a wasteful number, since it uses less digits than its factorization.

328287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218.

The product of its digits is 5376, while the sum is 30.

The square root of 328287 is about 572.9633496132. The cubic root of 328287 is about 68.9844535443.

The spelling of 328287 in words is "three hundred twenty-eight thousand, two hundred eighty-seven".