118402987 has 8 divisors (see below), whose sum is σ = 119257632. Its totient is φ = 117552000.

The previous prime is 118402967. The next prime is 118403009. The reversal of 118402987 is 789204811.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 118402987 - 2⁷ = 118402859 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (118402967) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 97987 + ... + 99187.

It is an arithmetic number, because the mean of its divisors is an integer number (14907204).

Almost surely, 2^118402987 is an apocalyptic number.

118402987 is a deficient number, since it is larger than the sum of its proper divisors (854645).

118402987 is a wasteful number, since it uses less digits than its factorization.

118402987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1829.

The product of its (nonzero) digits is 32256, while the sum is 40.

The square root of 118402987 is about 10881.3136615025. The cubic root of 118402987 is about 491.0445397713.

The spelling of 118402987 in words is "one hundred eighteen million, four hundred two thousand, nine hundred eighty-seven".