856223223 has 8 divisors (see below), whose sum is σ = 1142550000. Its totient is φ = 570355968.

The previous prime is 856223209. The next prime is 856223233. The reversal of 856223223 is 322322658.

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

It is not a de Polignac number, because 856223223 - 2¹⁸ = 855961079 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (856223233) 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, 110508 + ... + 118001.

It is an arithmetic number, because the mean of its divisors is an integer number (142818750).

Almost surely, 2^856223223 is an apocalyptic number.

856223223 is a deficient number, since it is larger than the sum of its proper divisors (286326777).

856223223 is a wasteful number, since it uses less digits than its factorization.

856223223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229761.

The product of its digits is 34560, while the sum is 33.

The square root of 856223223 is about 29261.2922305219. The cubic root of 856223223 is about 949.5744069652.

The spelling of 856223223 in words is "eight hundred fifty-six million, two hundred twenty-three thousand, two hundred twenty-three".