12347441 has 4 divisors (see below), whose sum is σ = 12380400. Its totient is φ = 12314484.

The previous prime is 12347429. The next prime is 12347453. The reversal of 12347441 is 14474321.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 14474321 = 131 ⋅110491.

It is an interprime number because it is at equal distance from previous prime (12347429) and next prime (12347453).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12347441 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 12347441.

It is not an unprimeable number, because it can be changed into a prime (12347471) 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, 15911 + ... + 16668.

It is an arithmetic number, because the mean of its divisors is an integer number (3095100).

Almost surely, 2^12347441 is an apocalyptic number.

It is an amenable number.

12347441 is a deficient number, since it is larger than the sum of its proper divisors (32959).

12347441 is an equidigital number, since it uses as much as digits as its factorization.

12347441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32958.

The product of its digits is 2688, while the sum is 26.

The square root of 12347441 is about 3513.8925709247. The cubic root of 12347441 is about 231.1314195066.

The spelling of 12347441 in words is "twelve million, three hundred forty-seven thousand, four hundred forty-one".