12688700 has 36 divisors (see below), whose sum is σ = 27706560. Its totient is φ = 5043840.

The previous prime is 12688699. The next prime is 12688727. The reversal of 12688700 is 788621.

12688700 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×12688700² = 322006215380000, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22016 + ... + 22584.

Almost surely, 2^12688700 is an apocalyptic number.

12688700 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12688700 is an abundant number, since it is smaller than the sum of its proper divisors (15017860).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12688700 is a wasteful number, since it uses less digits than its factorization.

12688700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 806 (or 799 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 32.

The square root of 12688700 is about 3562.1201551885. The cubic root of 12688700 is about 233.2414377357.

The spelling of 12688700 in words is "twelve million, six hundred eighty-eight thousand, seven hundred".