12803843 has 4 divisors (see below), whose sum is σ = 13788768. Its totient is φ = 11818920.

The previous prime is 12803803. The next prime is 12803851. The reversal of 12803843 is 34830821.

It is a happy number.

12803843 is digitally balanced in base 2 and base 3, because in such bases 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: 34830821 = 67 ⋅519863.

It is a cyclic number.

It is not a de Polignac number, because 12803843 - 2⁶ = 12803779 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12803803) 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, 492443 + ... + 492468.

It is an arithmetic number, because the mean of its divisors is an integer number (3447192).

Almost surely, 2^12803843 is an apocalyptic number.

12803843 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

12803843 is a deficient number, since it is larger than the sum of its proper divisors (984925).

12803843 is an equidigital number, since it uses as much as digits as its factorization.

12803843 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 984924.

The product of its (nonzero) digits is 4608, while the sum is 29.

The square root of 12803843 is about 3578.2457992709. The cubic root of 12803843 is about 233.9448271316.

The spelling of 12803843 in words is "twelve million, eight hundred three thousand, eight hundred forty-three".