117838 has 16 divisors (see below), whose sum is σ = 213120. Its totient is φ = 47736.

The previous prime is 117833. The next prime is 117839. The reversal of 117838 is 838711.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117833) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45 + ... + 487.

It is an arithmetic number, because the mean of its divisors is an integer number (13320).

2¹¹⁷⁸³⁸ is an apocalyptic number.

117838 is a deficient number, since it is larger than the sum of its proper divisors (95282).

117838 is a wasteful number, since it uses less digits than its factorization.

117838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 471.

The product of its digits is 1344, while the sum is 28.

The square root of 117838 is about 343.2753996429. The cubic root of 117838 is about 49.0262250288.

The spelling of 117838 in words is "one hundred seventeen thousand, eight hundred thirty-eight".