472223321 has 4 divisors (see below), whose sum is σ = 497077200. Its totient is φ = 447369444.

The previous prime is 472223317. The next prime is 472223347. The reversal of 472223321 is 123322274.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 472223321 - 2² = 472223317 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (472223821) 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, 12426911 + ... + 12426948.

It is an arithmetic number, because the mean of its divisors is an integer number (124269300).

Almost surely, 2^472223321 is an apocalyptic number.

It is an amenable number.

472223321 is a deficient number, since it is larger than the sum of its proper divisors (24853879).

472223321 is a wasteful number, since it uses less digits than its factorization.

472223321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24853878.

The product of its digits is 4032, while the sum is 26.

The square root of 472223321 is about 21730.6999657167. The cubic root of 472223321 is about 778.7220587079.

Adding to 472223321 its reverse (123322274), we get a palindrome (595545595).

The spelling of 472223321 in words is "four hundred seventy-two million, two hundred twenty-three thousand, three hundred twenty-one".