12803426 has 4 divisors (see below), whose sum is σ = 19205142. Its totient is φ = 6401712.

The previous prime is 12803423. The next prime is 12803447. The reversal of 12803426 is 62430821.

12803426 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 62430821 = 2833 ⋅22037.

It can be written as a sum of positive squares in only one way, i.e., 12780625 + 22801 = 3575^2 + 151^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12803395 and 12803404.

It is not an unprimeable number, because it can be changed into a prime (12803423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3200855 + ... + 3200858.

Almost surely, 2^12803426 is an apocalyptic number.

12803426 is a deficient number, since it is larger than the sum of its proper divisors (6401716).

12803426 is an equidigital number, since it uses as much as digits as its factorization.

12803426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6401715.

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 12803426 is about 3578.1875300213. The cubic root of 12803426 is about 233.9422873719.

The spelling of 12803426 in words is "twelve million, eight hundred three thousand, four hundred twenty-six".