12965843 has 16 divisors (see below), whose sum is σ = 14929920. Its totient is φ = 11150400.

The previous prime is 12965839. The next prime is 12965851. The reversal of 12965843 is 34856921.

It is a happy number.

12965843 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 12965843 - 2² = 12965839 is a prime.

It is a super-2 number, since 2×12965843² = 336226169401298, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12965797 and 12965806.

It is not an unprimeable number, because it can be changed into a prime (12965863) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15623 + ... + 16431.

It is an arithmetic number, because the mean of its divisors is an integer number (933120).

Almost surely, 2^12965843 is an apocalyptic number.

12965843 is a deficient number, since it is larger than the sum of its proper divisors (1964077).

12965843 is a wasteful number, since it uses less digits than its factorization.

12965843 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 898.

The product of its digits is 51840, while the sum is 38.

The square root of 12965843 is about 3600.8114363293. The cubic root of 12965843 is about 234.9273534313.

The spelling of 12965843 in words is "twelve million, nine hundred sixty-five thousand, eight hundred forty-three".