117715867 has 2 divisors, whose sum is σ = 117715868. Its totient is φ = 117715866.

The previous prime is 117715757. The next prime is 117715877. The reversal of 117715867 is 768517711.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 117715867 - 2⁷ = 117715739 is a prime.

It is not a weakly prime, because it can be changed into another prime (117715877) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58857933 + 58857934.

It is an arithmetic number, because the mean of its divisors is an integer number (58857934).

Almost surely, 2^117715867 is an apocalyptic number.

117715867 is a deficient number, since it is larger than the sum of its proper divisors (1).

117715867 is an equidigital number, since it uses as much as digits as its factorization.

117715867 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 82320, while the sum is 43.

The square root of 117715867 is about 10849.6943274914. The cubic root of 117715867 is about 490.0928145715.

It can be divided in two parts, 1177158 and 67, that added together give a square (1177225 = 1085²).

The spelling of 117715867 in words is "one hundred seventeen million, seven hundred fifteen thousand, eight hundred sixty-seven".