12839747 has 2 divisors, whose sum is σ = 12839748. Its totient is φ = 12839746.

The previous prime is 12839719. The next prime is 12839753. The reversal of 12839747 is 74793821.

It is a strong prime.

It is an emirp because it is prime and its reverse (74793821) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12839747 - 2¹² = 12835651 is a prime.

It is not a weakly prime, because it can be changed into another prime (12839767) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6419873 + 6419874.

It is an arithmetic number, because the mean of its divisors is an integer number (6419874).

Almost surely, 2^12839747 is an apocalyptic number.

12839747 is a deficient number, since it is larger than the sum of its proper divisors (1).

12839747 is an equidigital number, since it uses as much as digits as its factorization.

12839747 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 84672, while the sum is 41.

The square root of 12839747 is about 3583.2592705524. The cubic root of 12839747 is about 234.1632958120.

The spelling of 12839747 in words is "twelve million, eight hundred thirty-nine thousand, seven hundred forty-seven".