8223823 has 4 divisors (see below), whose sum is σ = 8237488. Its totient is φ = 8210160.

The previous prime is 8223749. The next prime is 8223863. The reversal of 8223823 is 3283228.

8223823 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8223823 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 8223791 and 8223800.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8223863) 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, 5886 + ... + 7147.

It is an arithmetic number, because the mean of its divisors is an integer number (2059372).

Almost surely, 2^8223823 is an apocalyptic number.

8223823 is a deficient number, since it is larger than the sum of its proper divisors (13665).

8223823 is a wasteful number, since it uses less digits than its factorization.

8223823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13664.

The product of its digits is 4608, while the sum is 28.

The square root of 8223823 is about 2867.7208720515. The cubic root of 8223823 is about 201.8480623956.

The spelling of 8223823 in words is "eight million, two hundred twenty-three thousand, eight hundred twenty-three".