12687953 has 12 divisors (see below), whose sum is σ = 13653360. Its totient is φ = 11757096.

The previous prime is 12687947. The next prime is 12687971. The reversal of 12687953 is 35978621.

It is not a de Polignac number, because 12687953 - 2⁶ = 12687889 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 12687953.

It is not an unprimeable number, because it can be changed into a prime (12687943) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 118526 + ... + 118632.

It is an arithmetic number, because the mean of its divisors is an integer number (1137780).

Almost surely, 2^12687953 is an apocalyptic number.

It is an amenable number.

12687953 is a deficient number, since it is larger than the sum of its proper divisors (965407).

12687953 is an equidigital number, since it uses as much as digits as its factorization.

12687953 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 284 (or 205 counting only the distinct ones).

The product of its digits is 90720, while the sum is 41.

The square root of 12687953 is about 3562.0153003602. The cubic root of 12687953 is about 233.2368605719.

The spelling of 12687953 in words is "twelve million, six hundred eighty-seven thousand, nine hundred fifty-three".