117806911 has 2 divisors, whose sum is σ = 117806912. Its totient is φ = 117806910.

The previous prime is 117806891. The next prime is 117806917. The reversal of 117806911 is 119608711.

It is a strong prime.

It is an emirp because it is prime and its reverse (119608711) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 117806911 - 2⁵ = 117806879 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (117806917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58903455 + 58903456.

It is an arithmetic number, because the mean of its divisors is an integer number (58903456).

Almost surely, 2^117806911 is an apocalyptic number.

117806911 is a deficient number, since it is larger than the sum of its proper divisors (1).

117806911 is an equidigital number, since it uses as much as digits as its factorization.

117806911 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3024, while the sum is 34.

The square root of 117806911 is about 10853.8892107852. The cubic root of 117806911 is about 490.2191314760.

The spelling of 117806911 in words is "one hundred seventeen million, eight hundred six thousand, nine hundred eleven".