803339813 has 4 divisors (see below), whose sum is σ = 803410668. Its totient is φ = 803268960.

The previous prime is 803339809. The next prime is 803339851. The reversal of 803339813 is 318933308.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 563492644 + 239847169 = 23738^2 + 15487^2 .

It is a cyclic number.

It is not a de Polignac number, because 803339813 - 2² = 803339809 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (803239813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14168 + ... + 42513.

It is an arithmetic number, because the mean of its divisors is an integer number (200852667).

Almost surely, 2^803339813 is an apocalyptic number.

It is an amenable number.

803339813 is a deficient number, since it is larger than the sum of its proper divisors (70855).

803339813 is a wasteful number, since it uses less digits than its factorization.

803339813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70854.

The product of its (nonzero) digits is 46656, while the sum is 38.

The square root of 803339813 is about 28343.2498665908. The cubic root of 803339813 is about 929.6078097358.

The spelling of 803339813 in words is "eight hundred three million, three hundred thirty-nine thousand, eight hundred thirteen".