12847742 has 8 divisors (see below), whose sum is σ = 19378632. Its totient is φ = 6388200.

The previous prime is 12847741. The next prime is 12847771. The reversal of 12847742 is 24774821.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12847741) 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 3 ways as a sum of consecutive naturals, for example, 17384 + ... + 18107.

It is an arithmetic number, because the mean of its divisors is an integer number (2422329).

Almost surely, 2^12847742 is an apocalyptic number.

12847742 is a deficient number, since it is larger than the sum of its proper divisors (6530890).

12847742 is a wasteful number, since it uses less digits than its factorization.

12847742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35674.

The product of its digits is 25088, while the sum is 35.

The square root of 12847742 is about 3584.3747013949. The cubic root of 12847742 is about 234.2118883351.

The spelling of 12847742 in words is "twelve million, eight hundred forty-seven thousand, seven hundred forty-two".