12855722 has 16 divisors (see below), whose sum is σ = 21485952. Its totient is φ = 5718720.

The previous prime is 12855721. The next prime is 12855751. The reversal of 12855722 is 22755821.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (12855721) 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, 5183 + ... + 7250.

It is an arithmetic number, because the mean of its divisors is an integer number (1342872).

Almost surely, 2^12855722 is an apocalyptic number.

12855722 is a deficient number, since it is larger than the sum of its proper divisors (8630230).

12855722 is a wasteful number, since it uses less digits than its factorization.

12855722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12493.

The product of its digits is 11200, while the sum is 32.

The square root of 12855722 is about 3585.4876934665. The cubic root of 12855722 is about 234.2603695920.

Subtracting 12855722 from its reverse (22755821), we obtain a palindrome (9900099).

It can be divided in two parts, 1285 and 5722, that added together give a palindrome (7007).

The spelling of 12855722 in words is "twelve million, eight hundred fifty-five thousand, seven hundred twenty-two".