12347444 has 6 divisors (see below), whose sum is σ = 21608034. Its totient is φ = 6173720.

The previous prime is 12347429. The next prime is 12347453. The reversal of 12347444 is 44474321.

It can be written as a sum of positive squares in only one way, i.e., 8880400 + 3467044 = 2980^2 + 1862^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1543427 + ... + 1543434.

It is an arithmetic number, because the mean of its divisors is an integer number (3601339).

Almost surely, 2^12347444 is an apocalyptic number.

It is an amenable number.

12347444 is a deficient number, since it is larger than the sum of its proper divisors (9260590).

12347444 is a wasteful number, since it uses less digits than its factorization.

12347444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3086865 (or 3086863 counting only the distinct ones).

The product of its digits is 10752, while the sum is 29.

The square root of 12347444 is about 3513.8929978017. The cubic root of 12347444 is about 231.1314382255.

The spelling of 12347444 in words is "twelve million, three hundred forty-seven thousand, four hundred forty-four".