9838939 has 4 divisors (see below), whose sum is σ = 10733400. Its totient is φ = 8944480.

The previous prime is 9838931. The next prime is 9838943. The reversal of 9838939 is 9398389.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 9838939 - 2³ = 9838931 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 9838892 and 9838901.

It is not an unprimeable number, because it can be changed into a prime (9838931) 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 3 ways as a sum of consecutive naturals, for example, 447214 + ... + 447235.

It is an arithmetic number, because the mean of its divisors is an integer number (2683350).

Almost surely, 2^9838939 is an apocalyptic number.

9838939 is a deficient number, since it is larger than the sum of its proper divisors (894461).

9838939 is a wasteful number, since it uses less digits than its factorization.

9838939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 894460.

The product of its digits is 419904, while the sum is 49.

The square root of 9838939 is about 3136.7083064895. The cubic root of 9838939 is about 214.2805517698.

The spelling of 9838939 in words is "nine million, eight hundred thirty-eight thousand, nine hundred thirty-nine".