12863860 has 24 divisors (see below), whose sum is σ = 27112680. Its totient is φ = 5126784.

The previous prime is 12863839. The next prime is 12863867. The reversal of 12863860 is 6836821.

It can be written as a sum of positive squares in 4 ways, for example, as 1920996 + 10942864 = 1386^2 + 3308^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12863867) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5326 + ... + 7354.

It is an arithmetic number, because the mean of its divisors is an integer number (1129695).

Almost surely, 2^12863860 is an apocalyptic number.

12863860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12863860 is an abundant number, since it is smaller than the sum of its proper divisors (14248820).

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

12863860 is a wasteful number, since it uses less digits than its factorization.

12863860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2355 (or 2353 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 34.

The square root of 12863860 is about 3586.6223665170. The cubic root of 12863860 is about 234.3097900954.

The spelling of 12863860 in words is "twelve million, eight hundred sixty-three thousand, eight hundred sixty".