117879 has 4 divisors (see below), whose sum is σ = 157176. Its totient is φ = 78584.

The previous prime is 117877. The next prime is 117881. The reversal of 117879 is 978711.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (117877) and next prime (117881).

It is a cyclic number.

It is not a de Polignac number, because 117879 - 2¹ = 117877 is a prime.

It is a D-number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117877) 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 3 ways as a sum of consecutive naturals, for example, 19644 + ... + 19649.

It is an arithmetic number, because the mean of its divisors is an integer number (39294).

2¹¹⁷⁸⁷⁹ is an apocalyptic number.

117879 is a deficient number, since it is larger than the sum of its proper divisors (39297).

117879 is an equidigital number, since it uses as much as digits as its factorization.

117879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39296.

The product of its digits is 3528, while the sum is 33.

The square root of 117879 is about 343.3351132640. The cubic root of 117879 is about 49.0319103543.

The spelling of 117879 in words is "one hundred seventeen thousand, eight hundred seventy-nine".