13244747 has 8 divisors (see below), whose sum is σ = 13548240. Its totient is φ = 12944160.

The previous prime is 13244687. The next prime is 13244773. The reversal of 13244747 is 74744231.

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 13244747 - 2¹⁰ = 13243723 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13244797) 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, 10313 + ... + 11525.

It is an arithmetic number, because the mean of its divisors is an integer number (1693530).

Almost surely, 2^13244747 is an apocalyptic number.

13244747 is a deficient number, since it is larger than the sum of its proper divisors (303493).

13244747 is a wasteful number, since it uses less digits than its factorization.

13244747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1453.

The product of its digits is 18816, while the sum is 32.

The square root of 13244747 is about 3639.3333180680. Note that the first 4 decimals coincide. The cubic root of 13244747 is about 236.5998993918.

Adding to 13244747 its reverse (74744231), we get a palindrome (87988978).

The spelling of 13244747 in words is "thirteen million, two hundred forty-four thousand, seven hundred forty-seven".