12687246 has 128 divisors (see below), whose sum is σ = 34836480. Its totient is φ = 3369600.

The previous prime is 12687223. The next prime is 12687331. The reversal of 12687246 is 64278621.

12687246 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×12687246² = 321932422129032, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12687246.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 239356 + ... + 239408.

It is an arithmetic number, because the mean of its divisors is an integer number (272160).

Almost surely, 2^12687246 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12687246, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17418240).

12687246 is an abundant number, since it is smaller than the sum of its proper divisors (22149234).

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

12687246 is a wasteful number, since it uses less digits than its factorization.

12687246 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119 (or 113 counting only the distinct ones).

The product of its digits is 32256, while the sum is 36.

The square root of 12687246 is about 3561.9160574051. The cubic root of 12687246 is about 233.2325283384.

The spelling of 12687246 in words is "twelve million, six hundred eighty-seven thousand, two hundred forty-six".