80117 has 4 divisors (see below), whose sum is σ = 80940. Its totient is φ = 79296.

The previous prime is 80111. The next prime is 80141. The reversal of 80117 is 71108.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 5041 + 75076 = 71^2 + 274^2 .

It is a cyclic number.

It is not a de Polignac number, because 80117 - 2⁸ = 79861 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 80095 and 80104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 242 + ... + 467.

It is an arithmetic number, because the mean of its divisors is an integer number (20235).

2⁸⁰¹¹⁷ is an apocalyptic number.

It is an amenable number.

80117 is a deficient number, since it is larger than the sum of its proper divisors (823).

80117 is a wasteful number, since it uses less digits than its factorization.

80117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 822.

The product of its (nonzero) digits is 56, while the sum is 17.

The square root of 80117 is about 283.0494656416. The cubic root of 80117 is about 43.1096893069.

Subtracting from 80117 its reverse (71108), we obtain a palindrome (9009).

It can be divided in two parts, 801 and 17, that added together give a palindrome (818).

The spelling of 80117 in words is "eighty thousand, one hundred seventeen".