12688270 has 32 divisors (see below), whose sum is σ = 26744256. Its totient is φ = 4243200.

The previous prime is 12688243. The next prime is 12688297. The reversal of 12688270 is 7288621.

12688270 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (12688243) and next prime (12688297).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 660 + ... + 5080.

It is an arithmetic number, because the mean of its divisors is an integer number (835758).

Almost surely, 2^12688270 is an apocalyptic number.

12688270 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12688270 is an abundant number, since it is smaller than the sum of its proper divisors (14055986).

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

12688270 is a wasteful number, since it uses less digits than its factorization.

12688270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4476.

The product of its (nonzero) digits is 10752, while the sum is 34.

The square root of 12688270 is about 3562.0597973644. The cubic root of 12688270 is about 233.2388029779.

The spelling of 12688270 in words is "twelve million, six hundred eighty-eight thousand, two hundred seventy".