6813803 has 4 divisors (see below), whose sum is σ = 6834360. Its totient is φ = 6793248.

The previous prime is 6813797. The next prime is 6813817. The reversal of 6813803 is 3083186.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 6813803 - 2⁶ = 6813739 is a prime.

It is a super-2 number, since 2×6813803² = 92855822645618, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (6813853) 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, 9773 + ... + 10446.

It is an arithmetic number, because the mean of its divisors is an integer number (1708590).

Almost surely, 2^6813803 is an apocalyptic number.

6813803 is a deficient number, since it is larger than the sum of its proper divisors (20557).

6813803 is a wasteful number, since it uses less digits than its factorization.

6813803 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20556.

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 6813803 is about 2610.3262248232. The cubic root of 6813803 is about 189.5817484820.

Adding to 6813803 its reverse (3083186), we get a palindrome (9896989).

The spelling of 6813803 in words is "six million, eight hundred thirteen thousand, eight hundred three".