9984457 has 8 divisors (see below), whose sum is σ = 12082176. Its totient is φ = 8054592.

The previous prime is 9984451. The next prime is 9984479. The reversal of 9984457 is 7544899.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-9984457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9984451) 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 7 ways as a sum of consecutive naturals, for example, 41833 + ... + 42070.

It is an arithmetic number, because the mean of its divisors is an integer number (1510272).

Almost surely, 2^9984457 is an apocalyptic number.

It is an amenable number.

9984457 is a deficient number, since it is larger than the sum of its proper divisors (2097719).

9984457 is a wasteful number, since it uses less digits than its factorization.

9984457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83927.

The product of its digits is 362880, while the sum is 46.

The square root of 9984457 is about 3159.8191403940. The cubic root of 9984457 is about 215.3317898609.

The spelling of 9984457 in words is "nine million, nine hundred eighty-four thousand, four hundred fifty-seven".