479781223 has 4 divisors (see below), whose sum is σ = 479836168. Its totient is φ = 479726280.

The previous prime is 479781193. The next prime is 479781227. The reversal of 479781223 is 322187974.

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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-479781223 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 479781223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (479781227) 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, 11136 + ... + 32917.

It is an arithmetic number, because the mean of its divisors is an integer number (119959042).

Almost surely, 2^479781223 is an apocalyptic number.

479781223 is a deficient number, since it is larger than the sum of its proper divisors (54945).

479781223 is a wasteful number, since it uses less digits than its factorization.

479781223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54944.

The product of its digits is 169344, while the sum is 43.

The square root of 479781223 is about 21903.9088520748. The cubic root of 479781223 is about 782.8545541845.

The spelling of 479781223 in words is "four hundred seventy-nine million, seven hundred eighty-one thousand, two hundred twenty-three".