12343865 has 4 divisors (see below), whose sum is σ = 14812644. Its totient is φ = 9875088.

The previous prime is 12343861. The next prime is 12343871. The reversal of 12343865 is 56834321.

12343865 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 56834321 = 1907 ⋅29803.

It can be written as a sum of positive squares in 2 ways, for example, as 6492304 + 5851561 = 2548^2 + 2419^2 .

It is a cyclic number.

It is not a de Polignac number, because 12343865 - 2² = 12343861 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12343861) 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, 1234382 + ... + 1234391.

It is an arithmetic number, because the mean of its divisors is an integer number (3703161).

Almost surely, 2^12343865 is an apocalyptic number.

It is an amenable number.

12343865 is a deficient number, since it is larger than the sum of its proper divisors (2468779).

12343865 is an equidigital number, since it uses as much as digits as its factorization.

12343865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2468778.

The product of its digits is 17280, while the sum is 32.

The square root of 12343865 is about 3513.3836966662. The cubic root of 12343865 is about 231.1091043359.

The spelling of 12343865 in words is "twelve million, three hundred forty-three thousand, eight hundred sixty-five".