9872844 has 24 divisors (see below), whose sum is σ = 23112768. Its totient is φ = 3280080.

The previous prime is 9872839. The next prime is 9872887. The reversal of 9872844 is 4482789.

9872844 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 9872796 and 9872805.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2979 + ... + 5349.

It is an arithmetic number, because the mean of its divisors is an integer number (963032).

Almost surely, 2^9872844 is an apocalyptic number.

It is an amenable number.

9872844 is an abundant number, since it is smaller than the sum of its proper divisors (13239924).

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

9872844 is a wasteful number, since it uses less digits than its factorization.

9872844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2725 (or 2723 counting only the distinct ones).

The product of its digits is 129024, while the sum is 42.

The square root of 9872844 is about 3142.1082094670. The cubic root of 9872844 is about 214.5264066251.

The spelling of 9872844 in words is "nine million, eight hundred seventy-two thousand, eight hundred forty-four".