12472223 has 4 divisors (see below), whose sum is σ = 12484728. Its totient is φ = 12459720.

The previous prime is 12472211. The next prime is 12472247. The reversal of 12472223 is 32227421.

It is a happy number.

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 12472223 - 2¹⁶ = 12406687 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 (12471223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4613 + ... + 6798.

It is an arithmetic number, because the mean of its divisors is an integer number (3121182).

Almost surely, 2^12472223 is an apocalyptic number.

12472223 is a deficient number, since it is larger than the sum of its proper divisors (12505).

12472223 is a wasteful number, since it uses less digits than its factorization.

12472223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12504.

The product of its digits is 1344, while the sum is 23.

The square root of 12472223 is about 3531.6034601863. The cubic root of 12472223 is about 231.9074083050.

Adding to 12472223 its reverse (32227421), we get a palindrome (44699644).

The spelling of 12472223 in words is "twelve million, four hundred seventy-two thousand, two hundred twenty-three".