117688943 has 4 divisors (see below), whose sum is σ = 124611840. Its totient is φ = 110766048.

The previous prime is 117688913. The next prime is 117688973. The reversal of 117688943 is 349886711.

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

It is an interprime number because it is at equal distance from previous prime (117688913) and next prime (117688973).

It is a cyclic number.

It is not a de Polignac number, because 117688943 - 2⁸ = 117688687 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 (117688903) 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, 3461423 + ... + 3461456.

It is an arithmetic number, because the mean of its divisors is an integer number (31152960).

Almost surely, 2^117688943 is an apocalyptic number.

117688943 is a deficient number, since it is larger than the sum of its proper divisors (6922897).

117688943 is an equidigital number, since it uses as much as digits as its factorization.

117688943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6922896.

The product of its digits is 290304, while the sum is 47.

The square root of 117688943 is about 10848.4534842530. The cubic root of 117688943 is about 490.0554470089.

The spelling of 117688943 in words is "one hundred seventeen million, six hundred eighty-eight thousand, nine hundred forty-three".