117923 has 8 divisors (see below), whose sum is σ = 130368. Its totient is φ = 105984.

The previous prime is 117917. The next prime is 117937. The reversal of 117923 is 329711.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 117923 - 2¹⁶ = 52387 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (117973) 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, 515 + ... + 707.

It is an arithmetic number, because the mean of its divisors is an integer number (16296).

2¹¹⁷⁹²³ is an apocalyptic number.

117923 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

117923 is a deficient number, since it is larger than the sum of its proper divisors (12445).

117923 is a wasteful number, since it uses less digits than its factorization.

117923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 253.

The product of its digits is 378, while the sum is 23.

The square root of 117923 is about 343.3991846234. The cubic root of 117923 is about 49.0380102128.

It can be divided in two parts, 11 and 7923, that multiplied together give a triangular number (87153 = T₄₁₇).

The spelling of 117923 in words is "one hundred seventeen thousand, nine hundred twenty-three".