118639856 has 10 divisors (see below), whose sum is σ = 229864752. Its totient is φ = 59319920.

The previous prime is 118639849. The next prime is 118639861. The reversal of 118639856 is 658936811.

It is a self number, because there is not a number n which added to its sum of digits gives 118639856.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3707480 + ... + 3707511.

Almost surely, 2^118639856 is an apocalyptic number.

118639856 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

118639856 is a deficient number, since it is larger than the sum of its proper divisors (111224896).

118639856 is an equidigital number, since it uses as much as digits as its factorization.

118639856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7414999 (or 7414993 counting only the distinct ones).

The product of its digits is 311040, while the sum is 47.

The square root of 118639856 is about 10892.1924331146. The cubic root of 118639856 is about 491.3717718097.

The spelling of 118639856 in words is "one hundred eighteen million, six hundred thirty-nine thousand, eight hundred fifty-six".