117685911 has 8 divisors (see below), whose sum is σ = 179330944. Its totient is φ = 67249080.

The previous prime is 117685903. The next prime is 117685961. The reversal of 117685911 is 119586711.

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

It is not a de Polignac number, because 117685911 - 2³ = 117685903 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 117685911.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117685961) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2802025 + ... + 2802066.

It is an arithmetic number, because the mean of its divisors is an integer number (22416368).

Almost surely, 2^117685911 is an apocalyptic number.

117685911 is a deficient number, since it is larger than the sum of its proper divisors (61645033).

117685911 is an equidigital number, since it uses as much as digits as its factorization.

117685911 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5604101.

The product of its digits is 15120, while the sum is 39.

The square root of 117685911 is about 10848.3137399321. The cubic root of 117685911 is about 490.0512385680.

The spelling of 117685911 in words is "one hundred seventeen million, six hundred eighty-five thousand, nine hundred eleven".