117871967 has 2 divisors, whose sum is σ = 117871968. Its totient is φ = 117871966.

The previous prime is 117871937. The next prime is 117871981. The reversal of 117871967 is 769178711.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 117871967 - 2¹⁰ = 117870943 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (117871927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58935983 + 58935984.

It is an arithmetic number, because the mean of its divisors is an integer number (58935984).

Almost surely, 2^117871967 is an apocalyptic number.

117871967 is a deficient number, since it is larger than the sum of its proper divisors (1).

117871967 is an equidigital number, since it uses as much as digits as its factorization.

117871967 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 148176, while the sum is 47.

The square root of 117871967 is about 10856.8856952627. The cubic root of 117871967 is about 490.3093520662.

The spelling of 117871967 in words is "one hundred seventeen million, eight hundred seventy-one thousand, nine hundred sixty-seven".