12934813 has 4 divisors (see below), whose sum is σ = 12942748. Its totient is φ = 12926880.

The previous prime is 12934799. The next prime is 12934837. The reversal of 12934813 is 31843921.

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.

It can be written as a sum of positive squares in 2 ways, for example, as 9351364 + 3583449 = 3058^2 + 1893^2 .

It is a cyclic number.

It is not a de Polignac number, because 12934813 - 2⁹ = 12934301 is a prime.

It is the 3597-th Hogben number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12934613) by changing a digit.

It is a nontrivial repunit in base 3596.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 528 + ... + 5113.

It is an arithmetic number, because the mean of its divisors is an integer number (3235687).

Almost surely, 2^12934813 is an apocalyptic number.

It is an amenable number.

12934813 is a deficient number, since it is larger than the sum of its proper divisors (7935).

12934813 is an equidigital number, since it uses as much as digits as its factorization.

12934813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7934.

The product of its digits is 5184, while the sum is 31.

The square root of 12934813 is about 3596.5001042680. The cubic root of 12934813 is about 234.7397934744.

The spelling of 12934813 in words is "twelve million, nine hundred thirty-four thousand, eight hundred thirteen".