12688034 has 4 divisors (see below), whose sum is σ = 19032054. Its totient is φ = 6344016.

The previous prime is 12688033. The next prime is 12688037. The reversal of 12688034 is 43088621.

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

It can be written as a sum of positive squares in only one way, i.e., 9320809 + 3367225 = 3053^2 + 1835^2 .

It is not an unprimeable number, because it can be changed into a prime (12688033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3172007 + ... + 3172010.

Almost surely, 2^12688034 is an apocalyptic number.

12688034 is a deficient number, since it is larger than the sum of its proper divisors (6344020).

12688034 is an equidigital number, since it uses as much as digits as its factorization.

12688034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6344019.

The product of its (nonzero) digits is 9216, while the sum is 32.

The square root of 12688034 is about 3562.0266703100. The cubic root of 12688034 is about 233.2373568995.

The spelling of 12688034 in words is "twelve million, six hundred eighty-eight thousand, thirty-four".