12662871 has 8 divisors (see below), whose sum is σ = 18182640. Its totient is φ = 7792512.

The previous prime is 12662869. The next prime is 12662887. The reversal of 12662871 is 17826621.

12662871 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12662871 - 2¹ = 12662869 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12662801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 162306 + ... + 162383.

It is an arithmetic number, because the mean of its divisors is an integer number (2272830).

Almost surely, 2^12662871 is an apocalyptic number.

12662871 is a deficient number, since it is larger than the sum of its proper divisors (5519769).

12662871 is a wasteful number, since it uses less digits than its factorization.

12662871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 324705.

The product of its digits is 8064, while the sum is 33.

The square root of 12662871 is about 3558.4927989248. The cubic root of 12662871 is about 233.0830688600.

The spelling of 12662871 in words is "twelve million, six hundred sixty-two thousand, eight hundred seventy-one".