118399685 has 8 divisors (see below), whose sum is σ = 142670616. Its totient is φ = 94325760.

The previous prime is 118399669. The next prime is 118399691. The reversal of 118399685 is 586993811.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 8862529 + 109537156 = 2977^2 + 10466^2 .

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

It is not a de Polignac number, because 118399685 - 2⁴ = 118399669 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47924 + ... + 50333.

It is an arithmetic number, because the mean of its divisors is an integer number (17833827).

Almost surely, 2^118399685 is an apocalyptic number.

It is an amenable number.

118399685 is a deficient number, since it is larger than the sum of its proper divisors (24270931).

118399685 is an equidigital number, since it uses as much as digits as its factorization.

118399685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98503.

The product of its digits is 466560, while the sum is 50.

The square root of 118399685 is about 10881.1619324409. The cubic root of 118399685 is about 491.0399750099.

The spelling of 118399685 in words is "one hundred eighteen million, three hundred ninety-nine thousand, six hundred eighty-five".