12339943 has 24 divisors (see below), whose sum is σ = 16432416. Its totient is φ = 9039360.

The previous prime is 12339941. The next prime is 12339967. The reversal of 12339943 is 34993321.

It is not a de Polignac number, because 12339943 - 2¹ = 12339941 is a prime.

It is a super-3 number, since 3×12339943³ (a number of 22 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12339899 and 12339908.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12339941) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13971 + ... + 14827.

It is an arithmetic number, because the mean of its divisors is an integer number (684684).

Almost surely, 2^12339943 is an apocalyptic number.

12339943 is a deficient number, since it is larger than the sum of its proper divisors (4092473).

12339943 is a wasteful number, since it uses less digits than its factorization.

12339943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 903 (or 892 counting only the distinct ones).

The product of its digits is 17496, while the sum is 34.

The square root of 12339943 is about 3512.8255009323. The cubic root of 12339943 is about 231.0846250791.

The spelling of 12339943 in words is "twelve million, three hundred thirty-nine thousand, nine hundred forty-three".