9984424491 has 12 divisors (see below), whose sum is σ = 14508307632. Its totient is φ = 6616424016.

The previous prime is 9984424481. The next prime is 9984424501. The reversal of 9984424491 is 1944244899.

It is a happy number.

9984424491 is a `hidden beast` number, since 9 + 98 + 44 + 24 + 491 = 666.

9984424491 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (9984424481) and next prime (9984424501).

It is not a de Polignac number, because 9984424491 - 2⁷ = 9984424363 is a prime.

It is not an unprimeable number, because it can be changed into a prime (9984424481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3319996 + ... + 3323001.

It is an arithmetic number, because the mean of its divisors is an integer number (1209025636).

Almost surely, 2^9984424491 is an apocalyptic number.

9984424491 is a deficient number, since it is larger than the sum of its proper divisors (4523883141).

9984424491 is a wasteful number, since it uses less digits than its factorization.

9984424491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6643170 (or 6643167 counting only the distinct ones).

The product of its digits is 2985984, while the sum is 54.

The square root of 9984424491 is about 99922.0921068009. The cubic root of 9984424491 is about 2153.3155615673.

The spelling of 9984424491 in words is "nine billion, nine hundred eighty-four million, four hundred twenty-four thousand, four hundred ninety-one".