12288871 has 4 divisors (see below), whose sum is σ = 14044432. Its totient is φ = 10533312.

The previous prime is 12288869. The next prime is 12288907. The reversal of 12288871 is 17888221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 17888221 = 13 ⋅1376017.

It is a cyclic number.

It is not a de Polignac number, because 12288871 - 2¹ = 12288869 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12288871.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12288821) 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, 877770 + ... + 877783.

It is an arithmetic number, because the mean of its divisors is an integer number (3511108).

Almost surely, 2^12288871 is an apocalyptic number.

12288871 is a deficient number, since it is larger than the sum of its proper divisors (1755561).

12288871 is an equidigital number, since it uses as much as digits as its factorization.

12288871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1755560.

The product of its digits is 14336, while the sum is 37.

The square root of 12288871 is about 3505.5486018596. The cubic root of 12288871 is about 230.7653833746.

The spelling of 12288871 in words is "twelve million, two hundred eighty-eight thousand, eight hundred seventy-one".