216854 has 8 divisors (see below), whose sum is σ = 354888. Its totient is φ = 98560.

The previous prime is 216851. The next prime is 216859. The reversal of 216854 is 458612.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216851) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4907 + ... + 4950.

It is an arithmetic number, because the mean of its divisors is an integer number (44361).

2²¹⁶⁸⁵⁴ is an apocalyptic number.

216854 is a deficient number, since it is larger than the sum of its proper divisors (138034).

216854 is a wasteful number, since it uses less digits than its factorization.

216854 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9870.

The product of its digits is 1920, while the sum is 26.

The square root of 216854 is about 465.6758529278. The cubic root of 216854 is about 60.0789700906.

It can be divided in two parts, 2168 and 54, that added together give a palindrome (2222).

The spelling of 216854 in words is "two hundred sixteen thousand, eight hundred fifty-four".