8223708243 has 8 divisors (see below), whose sum is σ = 10982834128. Its totient is φ = 5473527264.

The previous prime is 8223708239. The next prime is 8223708257. The reversal of 8223708243 is 3428073228.

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

It is not a de Polignac number, because 8223708243 - 2² = 8223708239 is a prime.

It is a super-2 number, since 2×8223708243² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8223708293) 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, 2234080 + ... + 2237757.

It is an arithmetic number, because the mean of its divisors is an integer number (1372854266).

Almost surely, 2^8223708243 is an apocalyptic number.

8223708243 is a deficient number, since it is larger than the sum of its proper divisors (2759125885).

8223708243 is a wasteful number, since it uses less digits than its factorization.

8223708243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4472453.

The product of its (nonzero) digits is 129024, while the sum is 39.

The square root of 8223708243 is about 90684.6637695702. The cubic root of 8223708243 is about 2018.4712351415.

The spelling of 8223708243 in words is "eight billion, two hundred twenty-three million, seven hundred eight thousand, two hundred forty-three".