118206887 has 4 divisors (see below), whose sum is σ = 118236360. Its totient is φ = 118177416.

The previous prime is 118206811. The next prime is 118206911. The reversal of 118206887 is 788602811.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 118206887 - 2²⁶ = 51098023 is a prime.

It is a super-5 number, since 5×118206887⁵ (a number of 42 digits) contains 55555 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (118206587) 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, 7553 + ... + 17130.

It is an arithmetic number, because the mean of its divisors is an integer number (29559090).

Almost surely, 2^118206887 is an apocalyptic number.

118206887 is a deficient number, since it is larger than the sum of its proper divisors (29473).

118206887 is an equidigital number, since it uses as much as digits as its factorization.

118206887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29472.

The product of its (nonzero) digits is 43008, while the sum is 41.

The square root of 118206887 is about 10872.2990668947. The cubic root of 118206887 is about 490.7732993053.

The spelling of 118206887 in words is "one hundred eighteen million, two hundred six thousand, eight hundred eighty-seven".