117827 has 8 divisors (see below), whose sum is σ = 129600. Its totient is φ = 106624.

The previous prime is 117811. The next prime is 117833. The reversal of 117827 is 728711.

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

It is not a de Polignac number, because 117827 - 2⁴ = 117811 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 117796 and 117805.

It is not an unprimeable number, because it can be changed into a prime (117877) 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, 374 + ... + 612.

It is an arithmetic number, because the mean of its divisors is an integer number (16200).

2¹¹⁷⁸²⁷ is an apocalyptic number.

117827 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

117827 is a deficient number, since it is larger than the sum of its proper divisors (11773).

117827 is a wasteful number, since it uses less digits than its factorization.

117827 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 285.

The product of its digits is 784, while the sum is 26.

The square root of 117827 is about 343.2593771480. The cubic root of 117827 is about 49.0246994732.

The spelling of 117827 in words is "one hundred seventeen thousand, eight hundred twenty-seven".