12348439 has 4 divisors (see below), whose sum is σ = 12635656. Its totient is φ = 12061224.

The previous prime is 12348437. The next prime is 12348463. The reversal of 12348439 is 93484321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 93484321 = 7 ⋅13354903.

It is a cyclic number.

It is not a de Polignac number, because 12348439 - 2¹ = 12348437 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 (12348433) 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 in 3 ways as a sum of consecutive naturals, for example, 143544 + ... + 143629.

It is an arithmetic number, because the mean of its divisors is an integer number (3158914).

Almost surely, 2^12348439 is an apocalyptic number.

12348439 is a deficient number, since it is larger than the sum of its proper divisors (287217).

12348439 is an equidigital number, since it uses as much as digits as its factorization.

12348439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 287216.

The product of its digits is 20736, while the sum is 34.

The square root of 12348439 is about 3514.0345758117. The cubic root of 12348439 is about 231.1376465173.

The spelling of 12348439 in words is "twelve million, three hundred forty-eight thousand, four hundred thirty-nine".