9996805807 has 2 divisors, whose sum is σ = 9996805808. Its totient is φ = 9996805806.

The previous prime is 9996805799. The next prime is 9996805823. The reversal of 9996805807 is 7085086999.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 9996805807 - 2³ = 9996805799 is a prime.

It is a super-2 number, since 2×9996805807² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9996805877) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4998402903 + 4998402904.

It is an arithmetic number, because the mean of its divisors is an integer number (4998402904).

Almost surely, 2^9996805807 is an apocalyptic number.

9996805807 is a deficient number, since it is larger than the sum of its proper divisors (1).

9996805807 is an equidigital number, since it uses as much as digits as its factorization.

9996805807 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9797760, while the sum is 61.

The square root of 9996805807 is about 99984.0277594377. The cubic root of 9996805807 is about 2154.2052762636.

The spelling of 9996805807 in words is "nine billion, nine hundred ninety-six million, eight hundred five thousand, eight hundred seven".