9984899 has 12 divisors (see below), whose sum is σ = 11164824. Its totient is φ = 8897472.

The previous prime is 9984893. The next prime is 9984913.

9984899 is nontrivially palindromic in base 10.

It is a de Polignac number, because none of the positive numbers 2^k-9984899 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9984893) 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 11 ways as a sum of consecutive naturals, for example, 5324 + ... + 6950.

It is an arithmetic number, because the mean of its divisors is an integer number (930402).

Almost surely, 2^9984899 is an apocalyptic number.

9984899 is a deficient number, since it is larger than the sum of its proper divisors (1179925).

9984899 is a wasteful number, since it uses less digits than its factorization.

9984899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1682 (or 1663 counting only the distinct ones).

The product of its digits is 1679616, while the sum is 56.

The square root of 9984899 is about 3159.8890803318. The cubic root of 9984899 is about 215.3349673079.

The spelling of 9984899 in words is "nine million, nine hundred eighty-four thousand, eight hundred ninety-nine".