9992844 has 18 divisors (see below), whose sum is σ = 25259780. Its totient is φ = 3330936.

The previous prime is 9992797. The next prime is 9992861. The reversal of 9992844 is 4482999.

It is a tau number, because it is divible by the number of its divisors (18).

It is a self number, because there is not a number n which added to its sum of digits gives 9992844.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 138754 + ... + 138825.

Almost surely, 2^9992844 is an apocalyptic number.

It is an amenable number.

9992844 is an abundant number, since it is smaller than the sum of its proper divisors (15266936).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9992844 is a wasteful number, since it uses less digits than its factorization.

9992844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 277589 (or 277584 counting only the distinct ones).

The product of its digits is 186624, while the sum is 45.

The square root of 9992844 is about 3161.1459947304. The cubic root of 9992844 is about 215.3920662912.

The spelling of 9992844 in words is "nine million, nine hundred ninety-two thousand, eight hundred forty-four".