117864871 has 8 divisors (see below), whose sum is σ = 119970000. Its totient is φ = 115765440.

The previous prime is 117864863. The next prime is 117864881. The reversal of 117864871 is 178468711.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 117864871 - 2³ = 117864863 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 (117864881) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77880 + ... + 79378.

It is an arithmetic number, because the mean of its divisors is an integer number (14996250).

Almost surely, 2^117864871 is an apocalyptic number.

117864871 is a deficient number, since it is larger than the sum of its proper divisors (2105129).

117864871 is a wasteful number, since it uses less digits than its factorization.

117864871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2849.

The product of its digits is 75264, while the sum is 43.

The square root of 117864871 is about 10856.5588931300. The cubic root of 117864871 is about 490.2995128453.

It can be divided in two parts, 1178 and 64871, that added together give a square (66049 = 257²).

The spelling of 117864871 in words is "one hundred seventeen million, eight hundred sixty-four thousand, eight hundred seventy-one".