9938829 has 32 divisors (see below), whose sum is σ = 15102720. Its totient is φ = 5778432.

The previous prime is 9938827. The next prime is 9938833. The reversal of 9938829 is 9288399.

9938829 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 9938829 - 2¹ = 9938827 is a prime.

9938829 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9938821) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 43287 + ... + 43515.

It is an arithmetic number, because the mean of its divisors is an integer number (471960).

Almost surely, 2^9938829 is an apocalyptic number.

It is an amenable number.

9938829 is a deficient number, since it is larger than the sum of its proper divisors (5163891).

9938829 is a wasteful number, since it uses less digits than its factorization.

9938829 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 309.

The product of its digits is 279936, while the sum is 48.

The square root of 9938829 is about 3152.5908392939. The cubic root of 9938829 is about 215.0032737919.

The spelling of 9938829 in words is "nine million, nine hundred thirty-eight thousand, eight hundred twenty-nine".