117489 has 4 divisors (see below), whose sum is σ = 156656. Its totient is φ = 78324.

The previous prime is 117443. The next prime is 117497. The reversal of 117489 is 984711.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 117489 - 2⁷ = 117361 is a prime.

It is an Ulam number.

It is a D-number.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (117499) 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, 19579 + ... + 19584.

It is an arithmetic number, because the mean of its divisors is an integer number (39164).

2¹¹⁷⁴⁸⁹ is an apocalyptic number.

It is an amenable number.

117489 is a deficient number, since it is larger than the sum of its proper divisors (39167).

117489 is an equidigital number, since it uses as much as digits as its factorization.

117489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39166.

The product of its digits is 2016, while the sum is 30.

The square root of 117489 is about 342.7666844954. The cubic root of 117489 is about 48.9777769559.

It can be divided in two parts, 117 and 489, that added together give a palindrome (606).

The spelling of 117489 in words is "one hundred seventeen thousand, four hundred eighty-nine".