12855844 has 6 divisors (see below), whose sum is σ = 22497734. Its totient is φ = 6427920.

The previous prime is 12855833. The next prime is 12855851. The reversal of 12855844 is 44855821.

It can be written as a sum of positive squares in only one way, i.e., 10810944 + 2044900 = 3288^2 + 1430^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1606977 + ... + 1606984.

Almost surely, 2^12855844 is an apocalyptic number.

It is an amenable number.

12855844 is a deficient number, since it is larger than the sum of its proper divisors (9641890).

12855844 is a wasteful number, since it uses less digits than its factorization.

12855844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3213965 (or 3213963 counting only the distinct ones).

The product of its digits is 51200, while the sum is 37.

The square root of 12855844 is about 3585.5047064535. The cubic root of 12855844 is about 234.2611106284.

The spelling of 12855844 in words is "twelve million, eight hundred fifty-five thousand, eight hundred forty-four".