117930871 has 2 divisors, whose sum is σ = 117930872. Its totient is φ = 117930870.

The previous prime is 117930847. The next prime is 117930893. The reversal of 117930871 is 178039711.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 117930871 - 2²¹ = 115833719 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 117930871.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (117930271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58965435 + 58965436.

It is an arithmetic number, because the mean of its divisors is an integer number (58965436).

Almost surely, 2^117930871 is an apocalyptic number.

117930871 is a deficient number, since it is larger than the sum of its proper divisors (1).

117930871 is an equidigital number, since it uses as much as digits as its factorization.

117930871 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10584, while the sum is 37.

The square root of 117930871 is about 10859.5981049024. The cubic root of 117930871 is about 490.3910123434.

The spelling of 117930871 in words is "one hundred seventeen million, nine hundred thirty thousand, eight hundred seventy-one".