9922813 has 2 divisors, whose sum is σ = 9922814. Its totient is φ = 9922812.

The previous prime is 9922811. The next prime is 9922873. The reversal of 9922813 is 3182299.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5373124 + 4549689 = 2318^2 + 2133^2 .

It is a cyclic number.

It is not a de Polignac number, because 9922813 - 2¹ = 9922811 is a prime.

Together with 9922811, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9922811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4961406 + 4961407.

It is an arithmetic number, because the mean of its divisors is an integer number (4961407).

Almost surely, 2^9922813 is an apocalyptic number.

It is an amenable number.

9922813 is a deficient number, since it is larger than the sum of its proper divisors (1).

9922813 is an equidigital number, since it uses as much as digits as its factorization.

9922813 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7776, while the sum is 34.

The square root of 9922813 is about 3150.0496821479. The cubic root of 9922813 is about 214.8877221586.

The spelling of 9922813 in words is "nine million, nine hundred twenty-two thousand, eight hundred thirteen".