12006871 has 4 divisors (see below), whose sum is σ = 12019912. Its totient is φ = 11993832.

The previous prime is 12006859. The next prime is 12006887. The reversal of 12006871 is 17860021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 17860021 = 503 ⋅35507.

It is a cyclic number.

It is not a de Polignac number, because 12006871 - 2⁹ = 12006359 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 (12006671) 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, 5025 + ... + 7018.

It is an arithmetic number, because the mean of its divisors is an integer number (3004978).

Almost surely, 2^12006871 is an apocalyptic number.

12006871 is a deficient number, since it is larger than the sum of its proper divisors (13041).

12006871 is an equidigital number, since it uses as much as digits as its factorization.

12006871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13040.

The product of its (nonzero) digits is 672, while the sum is 25.

The square root of 12006871 is about 3465.0932166393. The cubic root of 12006871 is about 228.9865364598.

Adding to 12006871 its reverse (17860021), we get a palindrome (29866892).

The spelling of 12006871 in words is "twelve million, six thousand, eight hundred seventy-one".