9879838 has 16 divisors (see below), whose sum is σ = 15128064. Its totient is φ = 4838400.

The previous prime is 9879827. The next prime is 9879871. The reversal of 9879838 is 8389789.

It is a super-2 number, since 2×9879838² = 195222397812488, which contains 22 as substring.

It is an Ulam number.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 24438 + ... + 24838.

It is an arithmetic number, because the mean of its divisors is an integer number (945504).

Almost surely, 2^9879838 is an apocalyptic number.

9879838 is a deficient number, since it is larger than the sum of its proper divisors (5248226).

9879838 is a wasteful number, since it uses less digits than its factorization.

9879838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 627.

The product of its digits is 870912, while the sum is 52.

The square root of 9879838 is about 3143.2209594618. The cubic root of 9879838 is about 214.5770520632.

The spelling of 9879838 in words is "nine million, eight hundred seventy-nine thousand, eight hundred thirty-eight".