12027871 has 4 divisors (see below), whose sum is σ = 12039192. Its totient is φ = 12016552.

The previous prime is 12027863. The next prime is 12027881. The reversal of 12027871 is 17872021.

12027871 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 17872021 = 2539 ⋅7039.

It is a cyclic number.

It is not a de Polignac number, because 12027871 - 2³ = 12027863 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 (12027811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3880 + ... + 6253.

It is an arithmetic number, because the mean of its divisors is an integer number (3009798).

Almost surely, 2^12027871 is an apocalyptic number.

12027871 is a deficient number, since it is larger than the sum of its proper divisors (11321).

12027871 is a wasteful number, since it uses less digits than its factorization.

12027871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11320.

The product of its (nonzero) digits is 1568, while the sum is 28.

The square root of 12027871 is about 3468.1221143437. The cubic root of 12027871 is about 229.1199577458.

Adding to 12027871 its reverse (17872021), we get a palindrome (29899892).

The spelling of 12027871 in words is "twelve million, twenty-seven thousand, eight hundred seventy-one".