117849618 has 24 divisors (see below), whose sum is σ = 255590400. Its totient is φ = 39244824.

The previous prime is 117849587. The next prime is 117849637. The reversal of 117849618 is 816948711.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20463 + ... + 25581.

It is an arithmetic number, because the mean of its divisors is an integer number (10649600).

Almost surely, 2^117849618 is an apocalyptic number.

117849618 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

117849618 is an abundant number, since it is smaller than the sum of its proper divisors (137740782).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

117849618 is a wasteful number, since it uses less digits than its factorization.

117849618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6406 (or 6403 counting only the distinct ones).

The product of its digits is 96768, while the sum is 45.

The square root of 117849618 is about 10855.8563918283. The cubic root of 117849618 is about 490.2783618978.

The spelling of 117849618 in words is "one hundred seventeen million, eight hundred forty-nine thousand, six hundred eighteen".