813363223 has 4 divisors (see below), whose sum is σ = 823659040. Its totient is φ = 803067408.

The previous prime is 813363197. The next prime is 813363227. The reversal of 813363223 is 322363318.

813363223 is digitally balanced in base 2, 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 not a de Polignac number, because 813363223 - 2¹³ = 813355031 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (813363227) 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, 5147790 + ... + 5147947.

It is an arithmetic number, because the mean of its divisors is an integer number (205914760).

Almost surely, 2^813363223 is an apocalyptic number.

813363223 is a deficient number, since it is larger than the sum of its proper divisors (10295817).

813363223 is a wasteful number, since it uses less digits than its factorization.

813363223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10295816.

The product of its digits is 15552, while the sum is 31.

The square root of 813363223 is about 28519.5235409009. The cubic root of 813363223 is about 933.4581327025.

The spelling of 813363223 in words is "eight hundred thirteen million, three hundred sixty-three thousand, two hundred twenty-three".