12888687 has 8 divisors (see below), whose sum is σ = 19639936. Its totient is φ = 7364952.

The previous prime is 12888677. The next prime is 12888709. The reversal of 12888687 is 78688821.

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

It is not a de Polignac number, because 12888687 - 2¹² = 12884591 is a prime.

It is a super-2 number, since 2×12888687² = 332236505167938, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12888607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 306853 + ... + 306894.

It is an arithmetic number, because the mean of its divisors is an integer number (2454992).

Almost surely, 2^12888687 is an apocalyptic number.

12888687 is a deficient number, since it is larger than the sum of its proper divisors (6751249).

12888687 is an equidigital number, since it uses as much as digits as its factorization.

12888687 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 613757.

The product of its digits is 344064, while the sum is 48.

The square root of 12888687 is about 3590.0817539438. The cubic root of 12888687 is about 234.4604310072.

The spelling of 12888687 in words is "twelve million, eight hundred eighty-eight thousand, six hundred eighty-seven".