9985560349 has 2 divisors, whose sum is σ = 9985560350. Its totient is φ = 9985560348.

The previous prime is 9985560341. The next prime is 9985560353. The reversal of 9985560349 is 9430655899.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9546657849 + 438902500 = 97707^2 + 20950^2 .

It is a cyclic number.

It is not a de Polignac number, because 9985560349 - 2³ = 9985560341 is a prime.

It is a super-2 number, since 2×9985560349² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 9985560293 and 9985560302.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9985560341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4992780174 + 4992780175.

It is an arithmetic number, because the mean of its divisors is an integer number (4992780175).

Almost surely, 2^9985560349 is an apocalyptic number.

It is an amenable number.

9985560349 is a deficient number, since it is larger than the sum of its proper divisors (1).

9985560349 is an equidigital number, since it uses as much as digits as its factorization.

9985560349 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10497600, while the sum is 58.

The square root of 9985560349 is about 99927.7756632259. The cubic root of 9985560349 is about 2153.3972143444.

The spelling of 9985560349 in words is "nine billion, nine hundred eighty-five million, five hundred sixty thousand, three hundred forty-nine".