12343643 has 8 divisors (see below), whose sum is σ = 13476288. Its totient is φ = 11237184.

The previous prime is 12343637. The next prime is 12343679. The reversal of 12343643 is 34634321.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12343643 is a prime.

It is a super-2 number, since 2×12343643² = 304731045022898, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12343693) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5555 + ... + 7452.

It is an arithmetic number, because the mean of its divisors is an integer number (1684536).

Almost surely, 2^12343643 is an apocalyptic number.

12343643 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

12343643 is a deficient number, since it is larger than the sum of its proper divisors (1132645).

12343643 is a wasteful number, since it uses less digits than its factorization.

12343643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13093.

The product of its digits is 5184, while the sum is 26.

The square root of 12343643 is about 3513.3521030492. The cubic root of 12343643 is about 231.1077188560.

Adding to 12343643 its reverse (34634321), we get a palindrome (46977964).

The spelling of 12343643 in words is "twelve million, three hundred forty-three thousand, six hundred forty-three".