8218843 has 8 divisors (see below), whose sum is σ = 8759808. Its totient is φ = 7693224.

The previous prime is 8218831. The next prime is 8218853. The reversal of 8218843 is 3488128.

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

It is not a de Polignac number, because 8218843 - 2¹³ = 8210651 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 8218799 and 8218808.

It is not an unprimeable number, because it can be changed into a prime (8218853) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2721 + ... + 4882.

It is an arithmetic number, because the mean of its divisors is an integer number (1094976).

Almost surely, 2^8218843 is an apocalyptic number.

8218843 is a deficient number, since it is larger than the sum of its proper divisors (540965).

8218843 is a wasteful number, since it uses less digits than its factorization.

8218843 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7673.

The product of its digits is 12288, while the sum is 34.

The square root of 8218843 is about 2866.8524552198. The cubic root of 8218843 is about 201.8073106138.

The spelling of 8218843 in words is "eight million, two hundred eighteen thousand, eight hundred forty-three".