12881718 has 12 divisors (see below), whose sum is σ = 27910428. Its totient is φ = 4293900.

The previous prime is 12881711. The next prime is 12881719. The reversal of 12881718 is 81718821.

12881718 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12881711) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 357808 + ... + 357843.

It is an arithmetic number, because the mean of its divisors is an integer number (2325869).

Almost surely, 2^12881718 is an apocalyptic number.

12881718 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

12881718 is an abundant number, since it is smaller than the sum of its proper divisors (15028710).

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

12881718 is a wasteful number, since it uses less digits than its factorization.

12881718 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 715659 (or 715656 counting only the distinct ones).

The product of its digits is 7168, while the sum is 36.

The square root of 12881718 is about 3589.1110319966. Note that the first 3 decimals coincide. The cubic root of 12881718 is about 234.4181652764.

The spelling of 12881718 in words is "twelve million, eight hundred eighty-one thousand, seven hundred eighteen".