117807305 has 32 divisors (see below), whose sum is σ = 177465600. Its totient is φ = 72933120.

The previous prime is 117807293. The next prime is 117807323. The reversal of 117807305 is 503708711.

It is not a de Polignac number, because 117807305 - 2⁶ = 117807241 is a prime.

It is a super-2 number, since 2×117807305² = 27757122222726050, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 59471 + ... + 61419.

It is an arithmetic number, because the mean of its divisors is an integer number (5545800).

Almost surely, 2^117807305 is an apocalyptic number.

It is an amenable number.

117807305 is a deficient number, since it is larger than the sum of its proper divisors (59658295).

117807305 is a wasteful number, since it uses less digits than its factorization.

117807305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2129.

The product of its (nonzero) digits is 5880, while the sum is 32.

The square root of 117807305 is about 10853.9073609461. The cubic root of 117807305 is about 490.2196779807.

The spelling of 117807305 in words is "one hundred seventeen million, eight hundred seven thousand, three hundred five".