9838813 has 2 divisors, whose sum is σ = 9838814. Its totient is φ = 9838812.

The previous prime is 9838799. The next prime is 9838823. The reversal of 9838813 is 3188389.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8048569 + 1790244 = 2837^2 + 1338^2 .

It is a cyclic number.

It is not a de Polignac number, because 9838813 - 2¹⁷ = 9707741 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9838823) 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 as a sum of consecutive naturals, namely, 4919406 + 4919407.

It is an arithmetic number, because the mean of its divisors is an integer number (4919407).

Almost surely, 2^9838813 is an apocalyptic number.

It is an amenable number.

9838813 is a deficient number, since it is larger than the sum of its proper divisors (1).

9838813 is an equidigital number, since it uses as much as digits as its factorization.

9838813 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 41472, while the sum is 40.

The square root of 9838813 is about 3136.6882216758. The cubic root of 9838813 is about 214.2796370552.

The spelling of 9838813 in words is "nine million, eight hundred thirty-eight thousand, eight hundred thirteen".