672442223 has 4 divisors (see below), whose sum is σ = 683465928. Its totient is φ = 661418520.

The previous prime is 672442163. The next prime is 672442229. The reversal of 672442223 is 322244276.

672442223 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 672442223 - 2⁶ = 672442159 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 672442223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (672442229) 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, 5511761 + ... + 5511882.

It is an arithmetic number, because the mean of its divisors is an integer number (170866482).

Almost surely, 2^672442223 is an apocalyptic number.

672442223 is a deficient number, since it is larger than the sum of its proper divisors (11023705).

672442223 is a wasteful number, since it uses less digits than its factorization.

672442223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11023704.

The product of its digits is 32256, while the sum is 32.

The square root of 672442223 is about 25931.4909521223. The cubic root of 672442223 is about 876.0959211735.

Adding to 672442223 its reverse (322244276), we get a palindrome (994686499).

The spelling of 672442223 in words is "six hundred seventy-two million, four hundred forty-two thousand, two hundred twenty-three".