12688323 has 4 divisors (see below), whose sum is σ = 16917768. Its totient is φ = 8458880.

The previous prime is 12688303. The next prime is 12688343. The reversal of 12688323 is 32388621.

12688323 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (12688303) and next prime (12688343).

It is a cyclic number.

It is not a de Polignac number, because 12688323 - 2²² = 8494019 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12688303) 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, 2114718 + ... + 2114723.

It is an arithmetic number, because the mean of its divisors is an integer number (4229442).

Almost surely, 2^12688323 is an apocalyptic number.

12688323 is a deficient number, since it is larger than the sum of its proper divisors (4229445).

12688323 is an equidigital number, since it uses as much as digits as its factorization.

12688323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4229444.

The product of its digits is 13824, while the sum is 33.

The square root of 12688323 is about 3562.0672368724. The cubic root of 12688323 is about 233.2391277303.

It can be divided in two parts, 1268 and 8323, that added together give a triangular number (9591 = T₁₃₈).

The spelling of 12688323 in words is "twelve million, six hundred eighty-eight thousand, three hundred twenty-three".