9798901109 has 2 divisors, whose sum is σ = 9798901110. Its totient is φ = 9798901108.

The previous prime is 9798901097. The next prime is 9798901111. The reversal of 9798901109 is 9011098979.

9798901109 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9678230884 + 120670225 = 98378^2 + 10985^2 .

It is a cyclic number.

It is not a de Polignac number, because 9798901109 - 2¹² = 9798897013 is a prime.

It is a super-2 number, since 2×9798901109² (a number of 21 digits) contains 22 as substring.

Together with 9798901111, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9798901139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4899450554 + 4899450555.

It is an arithmetic number, because the mean of its divisors is an integer number (4899450555).

Almost surely, 2^9798901109 is an apocalyptic number.

It is an amenable number.

9798901109 is a deficient number, since it is larger than the sum of its proper divisors (1).

9798901109 is an equidigital number, since it uses as much as digits as its factorization.

9798901109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 367416, while the sum is 53.

The square root of 9798901109 is about 98989.3989728193. The cubic root of 9798901109 is about 2139.8949717721.

The spelling of 9798901109 in words is "nine billion, seven hundred ninety-eight million, nine hundred one thousand, one hundred nine".