8213223 has 16 divisors (see below), whose sum is σ = 11440736. Its totient is φ = 5235840.

The previous prime is 8213221. The next prime is 8213267. The reversal of 8213223 is 3223128.

It is not a de Polignac number, because 8213223 - 2¹ = 8213221 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 8213223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8213221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6165 + ... + 7377.

It is an arithmetic number, because the mean of its divisors is an integer number (715046).

Almost surely, 2^8213223 is an apocalyptic number.

8213223 is a deficient number, since it is larger than the sum of its proper divisors (3227513).

8213223 is a wasteful number, since it uses less digits than its factorization.

8213223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1314.

The product of its digits is 576, while the sum is 21.

The square root of 8213223 is about 2865.8721185705. The cubic root of 8213223 is about 201.7613018794.

The spelling of 8213223 in words is "eight million, two hundred thirteen thousand, two hundred twenty-three".