12688773 has 8 divisors (see below), whose sum is σ = 17013600. Its totient is φ = 8411568.

The previous prime is 12688771. The next prime is 12688811. The reversal of 12688773 is 37788621.

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

It is not a de Polignac number, because 12688773 - 2¹ = 12688771 is a prime.

It is a super-2 number, since 2×12688773² = 322009920491058, which contains 22 as substring.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12688771) 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, 11278 + ... + 12351.

It is an arithmetic number, because the mean of its divisors is an integer number (2126700).

Almost surely, 2^12688773 is an apocalyptic number.

It is an amenable number.

12688773 is a deficient number, since it is larger than the sum of its proper divisors (4324827).

12688773 is a wasteful number, since it uses less digits than its factorization.

12688773 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23811.

The product of its digits is 112896, while the sum is 42.

The square root of 12688773 is about 3562.1304018803. The cubic root of 12688773 is about 233.2418850258.

The spelling of 12688773 in words is "twelve million, six hundred eighty-eight thousand, seven hundred seventy-three".