117835665 has 8 divisors (see below), whose sum is σ = 188537088. Its totient is φ = 62845680.

The previous prime is 117835657. The next prime is 117835691. The reversal of 117835665 is 566538711.

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

It is not a de Polignac number, because 117835665 - 2³ = 117835657 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3927841 + ... + 3927870.

It is an arithmetic number, because the mean of its divisors is an integer number (23567136).

Almost surely, 2^117835665 is an apocalyptic number.

117835665 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

117835665 is a deficient number, since it is larger than the sum of its proper divisors (70701423).

117835665 is an equidigital number, since it uses as much as digits as its factorization.

117835665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7855719.

The product of its digits is 151200, while the sum is 42.

The square root of 117835665 is about 10855.2137242894. The cubic root of 117835665 is about 490.2590120289.

The spelling of 117835665 in words is "one hundred seventeen million, eight hundred thirty-five thousand, six hundred sixty-five".