118806 has 8 divisors (see below), whose sum is σ = 237624. Its totient is φ = 39600.

The previous prime is 118801. The next prime is 118819. The reversal of 118806 is 608811.

118806 = 39² + 40² + ... + 74².

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

118806 is an admirable number.

It is a super-2 number, since 2×118806² = 28229731272, which contains 22 as substring.

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 an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (118801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9895 + ... + 9906.

It is an arithmetic number, because the mean of its divisors is an integer number (29703).

2¹¹⁸⁸⁰⁶ is an apocalyptic number.

118806 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.

118806 is a wasteful number, since it uses less digits than its factorization.

118806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19806.

The product of its (nonzero) digits is 384, while the sum is 24.

The square root of 118806 is about 344.6824625652. The cubic root of 118806 is about 49.1601038193.

The spelling of 118806 in words is "one hundred eighteen thousand, eight hundred six".