12447572 has 12 divisors (see below), whose sum is σ = 21865536. Its totient is φ = 6200280.

The previous prime is 12447571. The next prime is 12447581. The reversal of 12447572 is 27574421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12447571) 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, 4658 + ... + 6825.

It is an arithmetic number, because the mean of its divisors is an integer number (1822128).

Almost surely, 2^12447572 is an apocalyptic number.

It is an amenable number.

12447572 is a deficient number, since it is larger than the sum of its proper divisors (9417964).

12447572 is a wasteful number, since it uses less digits than its factorization.

12447572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11758 (or 11756 counting only the distinct ones).

The product of its digits is 15680, while the sum is 32.

The square root of 12447572 is about 3528.1116762370. Note that the first 3 decimals coincide. The cubic root of 12447572 is about 231.7545213659.

The spelling of 12447572 in words is "twelve million, four hundred forty-seven thousand, five hundred seventy-two".