12712947 has 16 divisors (see below), whose sum is σ = 18322080. Its totient is φ = 7794432.

The previous prime is 12712939. The next prime is 12712963. The reversal of 12712947 is 74921721.

It is not a de Polignac number, because 12712947 - 2³ = 12712939 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12712927) 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, 15553 + ... + 16349.

It is an arithmetic number, because the mean of its divisors is an integer number (1145130).

Almost surely, 2^12712947 is an apocalyptic number.

12712947 is a deficient number, since it is larger than the sum of its proper divisors (5609133).

12712947 is a wasteful number, since it uses less digits than its factorization.

12712947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1222.

The product of its digits is 7056, while the sum is 33.

The square root of 12712947 is about 3565.5219814215. The cubic root of 12712947 is about 233.3899112234.

The spelling of 12712947 in words is "twelve million, seven hundred twelve thousand, nine hundred forty-seven".