12647271 has 16 divisors (see below), whose sum is σ = 20754944. Its totient is φ = 6670944.

The previous prime is 12647251. The next prime is 12647279. The reversal of 12647271 is 17274621.

It is not a de Polignac number, because 12647271 - 2⁷ = 12647143 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12647279) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22891 + ... + 23436.

It is an arithmetic number, because the mean of its divisors is an integer number (1297184).

Almost surely, 2^12647271 is an apocalyptic number.

12647271 is a deficient number, since it is larger than the sum of its proper divisors (8107673).

12647271 is a wasteful number, since it uses less digits than its factorization.

12647271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46350.

The product of its digits is 4704, while the sum is 30.

The square root of 12647271 is about 3556.3001841802. The cubic root of 12647271 is about 232.9873141122.

The spelling of 12647271 in words is "twelve million, six hundred forty-seven thousand, two hundred seventy-one".