326865 has 32 divisors (see below), whose sum is σ = 654336. Its totient is φ = 135360.

The previous prime is 326863. The next prime is 326867. The reversal of 326865 is 568623.

326865 = T₂₆₅ + T₂₆₆ + ... + T₂₇₃.

It is an interprime number because it is at equal distance from previous prime (326863) and next prime (326867).

It is not a de Polignac number, because 326865 - 2¹ = 326863 is a prime.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a zygodrome in base 6.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 326865.

It is not an unprimeable number, because it can be changed into a prime (326863) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1014 + ... + 1296.

It is an arithmetic number, because the mean of its divisors is an integer number (20448).

2³²⁶⁸⁶⁵ is an apocalyptic number.

326865 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

326865 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

326865 is a wasteful number, since it uses less digits than its factorization.

326865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 309.

The product of its digits is 8640, while the sum is 30.

The square root of 326865 is about 571.7210858452. The cubic root of 326865 is about 68.8847055887.

It can be divided in two parts, 3268 and 65, that added together give a palindrome (3333).

The spelling of 326865 in words is "three hundred twenty-six thousand, eight hundred sixty-five".