12711667 has 4 divisors (see below), whose sum is σ = 12982176. Its totient is φ = 12441160.

The previous prime is 12711649. The next prime is 12711697. The reversal of 12711667 is 76611721.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 76611721 = 229 ⋅334549.

It is a cyclic number.

It is not a de Polignac number, because 12711667 - 2¹⁵ = 12678899 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12711697) 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, 135184 + ... + 135277.

It is an arithmetic number, because the mean of its divisors is an integer number (3245544).

Almost surely, 2^12711667 is an apocalyptic number.

12711667 is a deficient number, since it is larger than the sum of its proper divisors (270509).

12711667 is an equidigital number, since it uses as much as digits as its factorization.

12711667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 270508.

The product of its digits is 3528, while the sum is 31.

The square root of 12711667 is about 3565.3424800431. The cubic root of 12711667 is about 233.3820780249.

The spelling of 12711667 in words is "twelve million, seven hundred eleven thousand, six hundred sixty-seven".