9984881 has 2 divisors, whose sum is σ = 9984882. Its totient is φ = 9984880.

The previous prime is 9984869. The next prime is 9984893. The reversal of 9984881 is 1884899.

9984881 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a balanced prime because it is at equal distance from previous prime (9984869) and next prime (9984893).

It can be written as a sum of positive squares in only one way, i.e., 7376656 + 2608225 = 2716^2 + 1615^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9984881 is a prime.

It is a super-2 number, since 2×9984881² = 199395697168322, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (9984811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4992440 + 4992441.

It is an arithmetic number, because the mean of its divisors is an integer number (4992441).

Almost surely, 2^9984881 is an apocalyptic number.

It is an amenable number.

9984881 is a deficient number, since it is larger than the sum of its proper divisors (1).

9984881 is an equidigital number, since it uses as much as digits as its factorization.

9984881 is an evil number, because the sum of its binary digits is even.

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

The square root of 9984881 is about 3159.8862321293. The cubic root of 9984881 is about 215.3348379114.

The spelling of 9984881 in words is "nine million, nine hundred eighty-four thousand, eight hundred eighty-one".