220843 has 6 divisors (see below), whose sum is σ = 256956. Its totient is φ = 189252.

The previous prime is 220841. The next prime is 220859. The reversal of 220843 is 348022.

It is a happy number.

It is not a de Polignac number, because 220843 - 2¹ = 220841 is a prime.

It is a plaindrome in base 15.

It is a self number, because there is not a number n which added to its sum of digits gives 220843.

It is not an unprimeable number, because it can be changed into a prime (220841) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2205 + ... + 2302.

It is an arithmetic number, because the mean of its divisors is an integer number (42826).

2²²⁰⁸⁴³ is an apocalyptic number.

220843 is a deficient number, since it is larger than the sum of its proper divisors (36113).

220843 is an equidigital number, since it uses as much as digits as its factorization.

220843 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4521 (or 4514 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 220843 is about 469.9393577899. The cubic root of 220843 is about 60.4451156282.

Adding to 220843 its reverse (348022), we get a palindrome (568865).

The spelling of 220843 in words is "two hundred twenty thousand, eight hundred forty-three".