12688234 has 8 divisors (see below), whose sum is σ = 20496420. Its totient is φ = 5856096.

The previous prime is 12688217. The next prime is 12688237. The reversal of 12688234 is 43288621.

12688234 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 9284209 + 3404025 = 3047^2 + 1845^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 12688234.

It is not an unprimeable number, because it can be changed into a prime (12688237) 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, 243979 + ... + 244030.

Almost surely, 2^12688234 is an apocalyptic number.

12688234 is a deficient number, since it is larger than the sum of its proper divisors (7808186).

12688234 is a wasteful number, since it uses less digits than its factorization.

12688234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 488024.

The product of its digits is 18432, while the sum is 34.

The square root of 12688234 is about 3562.0547441049. The cubic root of 12688234 is about 233.2385823909.

The spelling of 12688234 in words is "twelve million, six hundred eighty-eight thousand, two hundred thirty-four".