9988481 has 2 divisors, whose sum is σ = 9988482. Its totient is φ = 9988480.

The previous prime is 9988453. The next prime is 9988519. The reversal of 9988481 is 1848899.

9988481 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9859600 + 128881 = 3140^2 + 359^2 .

It is a cyclic number.

It is not a de Polignac number, because 9988481 - 2¹⁰ = 9987457 is a prime.

It is a super-2 number, since 2×9988481² = 199539505374722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (9988411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4994240 + 4994241.

It is an arithmetic number, because the mean of its divisors is an integer number (4994241).

Almost surely, 2^9988481 is an apocalyptic number.

It is an amenable number.

9988481 is a deficient number, since it is larger than the sum of its proper divisors (1).

9988481 is an equidigital number, since it uses as much as digits as its factorization.

9988481 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 165888, while the sum is 47.

The square root of 9988481 is about 3160.4558215549. The cubic root of 9988481 is about 215.3607141093.

The spelling of 9988481 in words is "nine million, nine hundred eighty-eight thousand, four hundred eighty-one".