12688084 has 6 divisors (see below), whose sum is σ = 22204154. Its totient is φ = 6344040.

The previous prime is 12688079. The next prime is 12688087. The reversal of 12688084 is 48088621.

It can be written as a sum of positive squares in only one way, i.e., 9548100 + 3139984 = 3090^2 + 1772^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12688087) 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 as a sum of consecutive naturals, namely, 1586007 + ... + 1586014.

Almost surely, 2^12688084 is an apocalyptic number.

It is an amenable number.

12688084 is a deficient number, since it is larger than the sum of its proper divisors (9516070).

12688084 is a wasteful number, since it uses less digits than its factorization.

12688084 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3172025 (or 3172023 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 37.

The square root of 12688084 is about 3562.0336887795. The cubic root of 12688084 is about 233.2376632736.

The spelling of 12688084 in words is "twelve million, six hundred eighty-eight thousand, eighty-four".