12726747 has 32 divisors (see below), whose sum is σ = 20885760. Its totient is φ = 7594560.

The previous prime is 12726743. The next prime is 12726757. The reversal of 12726747 is 74762721.

It is a happy number.

12726747 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12726747 - 2² = 12726743 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12726743) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 21388 + ... + 21974.

It is an arithmetic number, because the mean of its divisors is an integer number (652680).

Almost surely, 2^12726747 is an apocalyptic number.

12726747 is a deficient number, since it is larger than the sum of its proper divisors (8159013).

12726747 is a wasteful number, since it uses less digits than its factorization.

12726747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 680 (or 674 counting only the distinct ones).

The product of its digits is 32928, while the sum is 36.

The square root of 12726747 is about 3567.4566570598. The cubic root of 12726747 is about 233.4743295224.

The spelling of 12726747 in words is "twelve million, seven hundred twenty-six thousand, seven hundred forty-seven".