117878711 has 4 divisors (see below), whose sum is σ = 117949872. Its totient is φ = 117807552.

The previous prime is 117878701. The next prime is 117878723.

117878711 is nontrivially palindromic in base 10.

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

It is a cyclic number.

It is not a de Polignac number, because 117878711 - 2¹⁰ = 117877687 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 (117878701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33035 + ... + 36428.

It is an arithmetic number, because the mean of its divisors is an integer number (29487468).

Almost surely, 2^117878711 is an apocalyptic number.

117878711 is a deficient number, since it is larger than the sum of its proper divisors (71161).

117878711 is an equidigital number, since it uses as much as digits as its factorization.

117878711 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71160.

The product of its digits is 21952, while the sum is 41.

The square root of 117878711 is about 10857.1962771242. The cubic root of 117878711 is about 490.3187028426.

The spelling of 117878711 in words is "one hundred seventeen million, eight hundred seventy-eight thousand, seven hundred eleven".