117843807 has 4 divisors (see below), whose sum is σ = 157125080. Its totient is φ = 78562536.

The previous prime is 117843793. The next prime is 117843811. The reversal of 117843807 is 708348711.

It is a semiprime because it is the product of two primes.

It is a de Polignac number, because none of the positive numbers 2^k-117843807 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117843107) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19640632 + ... + 19640637.

It is an arithmetic number, because the mean of its divisors is an integer number (39281270).

Almost surely, 2^117843807 is an apocalyptic number.

117843807 is a deficient number, since it is larger than the sum of its proper divisors (39281273).

117843807 is an equidigital number, since it uses as much as digits as its factorization.

117843807 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39281272.

The product of its (nonzero) digits is 37632, while the sum is 39.

The square root of 117843807 is about 10855.5887449737. The cubic root of 117843807 is about 490.2703034517.

The spelling of 117843807 in words is "one hundred seventeen million, eight hundred forty-three thousand, eight hundred seven".