9903838 has 16 divisors (see below), whose sum is σ = 17257824. Its totient is φ = 4174560.

The previous prime is 9903821. The next prime is 9903847. The reversal of 9903838 is 8383099.

It is a self number, because there is not a number n which added to its sum of digits gives 9903838.

It is a congruent number.

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, 4945 + ... + 6652.

It is an arithmetic number, because the mean of its divisors is an integer number (1078614).

Almost surely, 2^9903838 is an apocalyptic number.

9903838 is a deficient number, since it is larger than the sum of its proper divisors (7353986).

9903838 is a wasteful number, since it uses less digits than its factorization.

9903838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11667.

The product of its (nonzero) digits is 46656, while the sum is 40.

The square root of 9903838 is about 3147.0363836473. The cubic root of 9903838 is about 214.7506610124.

The spelling of 9903838 in words is "nine million, nine hundred three thousand, eight hundred thirty-eight".