12724227 has 12 divisors (see below), whose sum is σ = 18828264. Its totient is φ = 8275680.

The previous prime is 12724223. The next prime is 12724249. The reversal of 12724227 is 72242721.

12724227 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12724227 - 2² = 12724223 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12724227.

It is not an unprimeable number, because it can be changed into a prime (12724223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16873 + ... + 17610.

It is an arithmetic number, because the mean of its divisors is an integer number (1569022).

Almost surely, 2^12724227 is an apocalyptic number.

12724227 is a deficient number, since it is larger than the sum of its proper divisors (6104037).

12724227 is a wasteful number, since it uses less digits than its factorization.

12724227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34530 (or 34527 counting only the distinct ones).

The product of its digits is 3136, while the sum is 27.

The square root of 12724227 is about 3567.1034467758. The cubic root of 12724227 is about 233.4589185629.

Adding to 12724227 its reverse (72242721), we get a palindrome (84966948).

The spelling of 12724227 in words is "twelve million, seven hundred twenty-four thousand, two hundred twenty-seven".