12946943 has 4 divisors (see below), whose sum is σ = 12971160. Its totient is φ = 12922728.

The previous prime is 12946931. The next prime is 12946951. The reversal of 12946943 is 34964921.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34964921 = 19 ⋅1840259.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12946943 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12946897 and 12946906.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12946903) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11288 + ... + 12381.

It is an arithmetic number, because the mean of its divisors is an integer number (3242790).

Almost surely, 2^12946943 is an apocalyptic number.

12946943 is a deficient number, since it is larger than the sum of its proper divisors (24217).

12946943 is an equidigital number, since it uses as much as digits as its factorization.

12946943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24216.

The product of its digits is 46656, while the sum is 38.

The square root of 12946943 is about 3598.1860707862. The cubic root of 12946943 is about 234.8131485894.

The spelling of 12946943 in words is "twelve million, nine hundred forty-six thousand, nine hundred forty-three".