12806793 has 6 divisors (see below), whose sum is σ = 18498714. Its totient is φ = 8537856.

The previous prime is 12806749. The next prime is 12806861. The reversal of 12806793 is 39760821.

It can be written as a sum of positive squares in only one way, i.e., 8838729 + 3968064 = 2973^2 + 1992^2 .

It is not a de Polignac number, because 12806793 - 2²⁰ = 11758217 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12806713) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 711480 + ... + 711497.

It is an arithmetic number, because the mean of its divisors is an integer number (3083119).

Almost surely, 2^12806793 is an apocalyptic number.

It is an amenable number.

12806793 is a deficient number, since it is larger than the sum of its proper divisors (5691921).

12806793 is a wasteful number, since it uses less digits than its factorization.

12806793 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1422983 (or 1422980 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 12806793 is about 3578.6579886879. The cubic root of 12806793 is about 233.9627926816.

The spelling of 12806793 in words is "twelve million, eight hundred six thousand, seven hundred ninety-three".