938838 has 16 divisors (see below), whose sum is σ = 1928880. Its totient is φ = 304416.

The previous prime is 938831. The next prime is 938843. The reversal of 938838 is 838839.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 938796 and 938805.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 938838.

It is not an unprimeable number, because it can be changed into a prime (938831) 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 7 ways as a sum of consecutive naturals, for example, 1893 + ... + 2336.

It is an arithmetic number, because the mean of its divisors is an integer number (120555).

2⁹³⁸⁸³⁸ is an apocalyptic number.

938838 is an abundant number, since it is smaller than the sum of its proper divisors (990042).

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

938838 is a wasteful number, since it uses less digits than its factorization.

938838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4271.

The product of its digits is 41472, while the sum is 39.

The square root of 938838 is about 968.9365304291. The cubic root of 938838 is about 97.9182297220.

Subtracting from 938838 its reverse (838839), we obtain a palindrome (99999).

The spelling of 938838 in words is "nine hundred thirty-eight thousand, eight hundred thirty-eight".