117618 has 8 divisors (see below), whose sum is σ = 235248. Its totient is φ = 39204.

The previous prime is 117617. The next prime is 117619. The reversal of 117618 is 816711.

It is an interprime number because it is at equal distance from previous prime (117617) and next prime (117619).

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

117618 is an admirable number.

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (117617) 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, 9796 + ... + 9807.

It is an arithmetic number, because the mean of its divisors is an integer number (29406).

2¹¹⁷⁶¹⁸ is an apocalyptic number.

117618 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

117618 is a wasteful number, since it uses less digits than its factorization.

117618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19608.

The product of its digits is 336, while the sum is 24.

The square root of 117618 is about 342.9548075184. The cubic root of 117618 is about 48.9956958596.

The spelling of 117618 in words is "one hundred seventeen thousand, six hundred eighteen".