8311223 has 4 divisors (see below), whose sum is σ = 8317008. Its totient is φ = 8305440.

The previous prime is 8311217. The next prime is 8311231. The reversal of 8311223 is 3221138.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 3221138 = 2 ⋅1610569.

It is a cyclic number.

It is not a de Polignac number, because 8311223 - 2²² = 4116919 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 8311195 and 8311204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8311243) 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, 1103 + ... + 4223.

It is an arithmetic number, because the mean of its divisors is an integer number (2079252).

Almost surely, 2^8311223 is an apocalyptic number.

8311223 is a deficient number, since it is larger than the sum of its proper divisors (5785).

8311223 is a wasteful number, since it uses less digits than its factorization.

8311223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5784.

The product of its digits is 288, while the sum is 20.

The square root of 8311223 is about 2882.9191802754. The cubic root of 8311223 is about 202.5606016863.

The spelling of 8311223 in words is "eight million, three hundred eleven thousand, two hundred twenty-three".