12820936 has 32 divisors (see below), whose sum is σ = 25531200. Its totient is φ = 6022720.

The previous prime is 12820909. The next prime is 12820937. The reversal of 12820936 is 63902821.

12820936 is nontrivially palindromic in base 12.

It is a junction number, because it is equal to n+sod(n) for n = 12820898 and 12820907.

It is not an unprimeable number, because it can be changed into a prime (12820937) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10266 + ... + 11446.

It is an arithmetic number, because the mean of its divisors is an integer number (797850).

Almost surely, 2^12820936 is an apocalyptic number.

It is an amenable number.

12820936 is a deficient number, since it is larger than the sum of its proper divisors (12710264).

12820936 is a wasteful number, since it uses less digits than its factorization.

12820936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1269 (or 1265 counting only the distinct ones).

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

The square root of 12820936 is about 3580.6334635089. The cubic root of 12820936 is about 234.0488854935.

The spelling of 12820936 in words is "twelve million, eight hundred twenty thousand, nine hundred thirty-six".