9984681 has 24 divisors (see below), whose sum is σ = 17209440. Its totient is φ = 5704776.

The previous prime is 9984679. The next prime is 9984683. The reversal of 9984681 is 1864899.

It is an interprime number because it is at equal distance from previous prime (9984679) and next prime (9984683).

It is not a de Polignac number, because 9984681 - 2¹ = 9984679 is a prime.

It is a super-2 number, since 2×9984681² = 199387709343522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (9984683) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2451 + ... + 5096.

It is an arithmetic number, because the mean of its divisors is an integer number (717060).

Almost surely, 2^9984681 is an apocalyptic number.

It is an amenable number.

9984681 is a deficient number, since it is larger than the sum of its proper divisors (7224759).

9984681 is a wasteful number, since it uses less digits than its factorization.

9984681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7570 (or 7557 counting only the distinct ones).

The product of its digits is 124416, while the sum is 45.

The square root of 9984681 is about 3159.8545852618. The cubic root of 9984681 is about 215.3334001625. Note that the first 3 decimals are identical.

The spelling of 9984681 in words is "nine million, nine hundred eighty-four thousand, six hundred eighty-one".