117907 has 4 divisors (see below), whose sum is σ = 118816. Its totient is φ = 117000.

The previous prime is 117899. The next prime is 117911. The reversal of 117907 is 709711.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 117907 - 2³ = 117899 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (117917) 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, 219 + ... + 532.

It is an arithmetic number, because the mean of its divisors is an integer number (29704).

2¹¹⁷⁹⁰⁷ is an apocalyptic number.

117907 is a deficient number, since it is larger than the sum of its proper divisors (909).

117907 is an equidigital number, since it uses as much as digits as its factorization.

117907 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 908.

The product of its (nonzero) digits is 441, while the sum is 25.

The square root of 117907 is about 343.3758873305. The cubic root of 117907 is about 49.0357922580.

It can be divided in two parts, 117 and 907, that added together give a 10-th power (1024 = 2¹⁰).

The spelling of 117907 in words is "one hundred seventeen thousand, nine hundred seven".