12956893 has 4 divisors (see below), whose sum is σ = 12966588. Its totient is φ = 12947200.

The previous prime is 12956863. The next prime is 12956903. The reversal of 12956893 is 39865921.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 39865921 = 349 ⋅114229.

It can be written as a sum of positive squares in 2 ways, for example, as 10517049 + 2439844 = 3243^2 + 1562^2 .

It is a cyclic number.

It is not a de Polignac number, because 12956893 - 2¹⁷ = 12825821 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12956863) 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, 2446 + ... + 5647.

It is an arithmetic number, because the mean of its divisors is an integer number (3241647).

Almost surely, 2^12956893 is an apocalyptic number.

It is an amenable number.

12956893 is a deficient number, since it is larger than the sum of its proper divisors (9695).

12956893 is an equidigital number, since it uses as much as digits as its factorization.

12956893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9694.

The product of its digits is 116640, while the sum is 43.

The square root of 12956893 is about 3599.5684463558. The cubic root of 12956893 is about 234.8732861462.

The spelling of 12956893 in words is "twelve million, nine hundred fifty-six thousand, eight hundred ninety-three".