12648687 has 16 divisors (see below), whose sum is σ = 17402880. Its totient is φ = 8167392.

The previous prime is 12648683. The next prime is 12648719. The reversal of 12648687 is 78684621.

It is not a de Polignac number, because 12648687 - 2² = 12648683 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12648683) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14958 + ... + 15780.

It is an arithmetic number, because the mean of its divisors is an integer number (1087680).

Almost surely, 2^12648687 is an apocalyptic number.

12648687 is a deficient number, since it is larger than the sum of its proper divisors (4754193).

12648687 is a wasteful number, since it uses less digits than its factorization.

12648687 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 982.

The product of its digits is 129024, while the sum is 42.

The square root of 12648687 is about 3556.4992619147. The cubic root of 12648687 is about 232.9960089451.

The spelling of 12648687 in words is "twelve million, six hundred forty-eight thousand, six hundred eighty-seven".