12744973 has 8 divisors (see below), whose sum is σ = 13156920. Its totient is φ = 12337920.

The previous prime is 12744961. The next prime is 12745009. The reversal of 12744973 is 37944721.

It can be written as a sum of positive squares in 4 ways, for example, as 227529 + 12517444 = 477^2 + 3538^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12744973 - 2¹³ = 12736781 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12744773) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 4483 + ... + 6751.

It is an arithmetic number, because the mean of its divisors is an integer number (1644615).

Almost surely, 2^12744973 is an apocalyptic number.

It is an amenable number.

12744973 is a deficient number, since it is larger than the sum of its proper divisors (411947).

12744973 is a wasteful number, since it uses less digits than its factorization.

12744973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2447.

The product of its digits is 42336, while the sum is 37.

The square root of 12744973 is about 3570.0102240750. The cubic root of 12744973 is about 233.5857293798.

The spelling of 12744973 in words is "twelve million, seven hundred forty-four thousand, nine hundred seventy-three".