117017805 has 16 divisors (see below), whose sum is σ = 187479360. Its totient is φ = 62325888.

The previous prime is 117017801. The next prime is 117017807. The reversal of 117017805 is 508710711.

It is a happy number.

It is not a de Polignac number, because 117017805 - 2² = 117017801 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117017801) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7314 + ... + 16956.

It is an arithmetic number, because the mean of its divisors is an integer number (11717460).

Almost surely, 2^117017805 is an apocalyptic number.

117017805 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

117017805 is a deficient number, since it is larger than the sum of its proper divisors (70461555).

117017805 is an equidigital number, since it uses as much as digits as its factorization.

117017805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10460.

The product of its (nonzero) digits is 1960, while the sum is 30.

The square root of 117017805 is about 10817.4768314982. The cubic root of 117017805 is about 489.1221335858.

The spelling of 117017805 in words is "one hundred seventeen million, seventeen thousand, eight hundred five".