12789844 has 6 divisors (see below), whose sum is σ = 22382234. Its totient is φ = 6394920.

The previous prime is 12789823. The next prime is 12789857. The reversal of 12789844 is 44898721.

It can be written as a sum of positive squares in only one way, i.e., 12744900 + 44944 = 3570^2 + 212^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 12789844.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1598727 + ... + 1598734.

Almost surely, 2^12789844 is an apocalyptic number.

It is an amenable number.

12789844 is a deficient number, since it is larger than the sum of its proper divisors (9592390).

12789844 is a wasteful number, since it uses less digits than its factorization.

12789844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3197465 (or 3197463 counting only the distinct ones).

The product of its digits is 129024, while the sum is 43.

The square root of 12789844 is about 3576.2891381990. The cubic root of 12789844 is about 233.8595353452.

The spelling of 12789844 in words is "twelve million, seven hundred eighty-nine thousand, eight hundred forty-four".