218327 has 4 divisors (see below), whose sum is σ = 220440. Its totient is φ = 216216.

The previous prime is 218287. The next prime is 218357. The reversal of 218327 is 723812.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 218327 - 2¹⁶ = 152791 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

218327 is a modest number, since divided by 327 gives 218 as remainder.

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 218327.

It is not an unprimeable number, because it can be changed into a prime (218357) 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 3 ways as a sum of consecutive naturals, for example, 893 + ... + 1110.

It is an arithmetic number, because the mean of its divisors is an integer number (55110).

2²¹⁸³²⁷ is an apocalyptic number.

218327 is a deficient number, since it is larger than the sum of its proper divisors (2113).

218327 is a wasteful number, since it uses less digits than its factorization.

218327 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2112.

The product of its digits is 672, while the sum is 23.

The square root of 218327 is about 467.2547485045. The cubic root of 218327 is about 60.2146938227.

It can be divided in two parts, 218 and 327, that added together give a palindrome (545).

The spelling of 218327 in words is "two hundred eighteen thousand, three hundred twenty-seven".