9885834 has 32 divisors (see below), whose sum is σ = 25107840. Its totient is φ = 2824416.

The previous prime is 9885817. The next prime is 9885859. The reversal of 9885834 is 4385889.

It is an Ulam number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 9885834.

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 15 ways as a sum of consecutive naturals, for example, 12699 + ... + 13454.

It is an arithmetic number, because the mean of its divisors is an integer number (784620).

Almost surely, 2^9885834 is an apocalyptic number.

9885834 is an abundant number, since it is smaller than the sum of its proper divisors (15222006).

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

9885834 is a wasteful number, since it uses less digits than its factorization.

9885834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26171 (or 26165 counting only the distinct ones).

The product of its digits is 276480, while the sum is 45.

The square root of 9885834 is about 3144.1746134717. The cubic root of 9885834 is about 214.6204516889.

Subtracting from 9885834 its reverse (4385889), we obtain a palindrome (5499945).

The spelling of 9885834 in words is "nine million, eight hundred eighty-five thousand, eight hundred thirty-four".