9898799 has 2 divisors, whose sum is σ = 9898800. Its totient is φ = 9898798.

The previous prime is 9898793. The next prime is 9898807. The reversal of 9898799 is 9978989.

It is a weak prime.

It is an emirp because it is prime and its reverse (9978989) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9898799 - 2⁴ = 9898783 is a prime.

It is a Chen prime.

It is an Ulam number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9898793) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4949399 + 4949400.

It is an arithmetic number, because the mean of its divisors is an integer number (4949400).

Almost surely, 2^9898799 is an apocalyptic number.

9898799 is a deficient number, since it is larger than the sum of its proper divisors (1).

9898799 is an equidigital number, since it uses as much as digits as its factorization.

9898799 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2939328, while the sum is 59.

The square root of 9898799 is about 3146.2356872936. The cubic root of 9898799 is about 214.7142336476.

The spelling of 9898799 in words is "nine million, eight hundred ninety-eight thousand, seven hundred ninety-nine".