12671447 has 4 divisors (see below), whose sum is σ = 12684096. Its totient is φ = 12658800.

The previous prime is 12671437. The next prime is 12671473. The reversal of 12671447 is 74417621.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 74417621 = 61 ⋅1219961.

It is a cyclic number.

It is not a de Polignac number, because 12671447 - 2⁴ = 12671431 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12671437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4679 + ... + 6872.

It is an arithmetic number, because the mean of its divisors is an integer number (3171024).

Almost surely, 2^12671447 is an apocalyptic number.

12671447 is a deficient number, since it is larger than the sum of its proper divisors (12649).

12671447 is a wasteful number, since it uses less digits than its factorization.

12671447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12648.

The product of its digits is 9408, while the sum is 32.

The square root of 12671447 is about 3559.6975995160. The cubic root of 12671447 is about 233.1356759217.

The spelling of 12671447 in words is "twelve million, six hundred seventy-one thousand, four hundred forty-seven".