117877871 has 4 divisors (see below), whose sum is σ = 118921152. Its totient is φ = 116834592.

The previous prime is 117877867. The next prime is 117877873. The reversal of 117877871 is 178778711.

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 117877871 - 2² = 117877867 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 (117877873) 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, 521471 + ... + 521696.

It is an arithmetic number, because the mean of its divisors is an integer number (29730288).

Almost surely, 2^117877871 is an apocalyptic number.

117877871 is a deficient number, since it is larger than the sum of its proper divisors (1043281).

117877871 is a wasteful number, since it uses less digits than its factorization.

117877871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1043280.

The product of its digits is 153664, while the sum is 47.

The square root of 117877871 is about 10857.1575930351. The cubic root of 117877871 is about 490.3175381746.

The spelling of 117877871 in words is "one hundred seventeen million, eight hundred seventy-seven thousand, eight hundred seventy-one".