216326 has 8 divisors (see below), whose sum is σ = 354024. Its totient is φ = 98320.

The previous prime is 216319. The next prime is 216329. The reversal of 216326 is 623612.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 216298 and 216307.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216329) by changing a digit.

216326 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4895 + ... + 4938.

It is an arithmetic number, because the mean of its divisors is an integer number (44253).

2²¹⁶³²⁶ is an apocalyptic number.

216326 is a deficient number, since it is larger than the sum of its proper divisors (137698).

216326 is a wasteful number, since it uses less digits than its factorization.

216326 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9846.

The product of its digits is 432, while the sum is 20.

The square root of 216326 is about 465.1085894713. The cubic root of 216326 is about 60.0301700121.

Adding to 216326 its reverse (623612), we get a palindrome (839938).

The spelling of 216326 in words is "two hundred sixteen thousand, three hundred twenty-six".