117956771 has 2 divisors, whose sum is σ = 117956772. Its totient is φ = 117956770.

The previous prime is 117956749. The next prime is 117956779. The reversal of 117956771 is 177659711.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 117956771 - 2¹⁴ = 117940387 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (117956779) 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, 58978385 + 58978386.

It is an arithmetic number, because the mean of its divisors is an integer number (58978386).

Almost surely, 2^117956771 is an apocalyptic number.

117956771 is a deficient number, since it is larger than the sum of its proper divisors (1).

117956771 is an equidigital number, since it uses as much as digits as its factorization.

117956771 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 92610, while the sum is 44.

The square root of 117956771 is about 10860.7905329216. The cubic root of 117956771 is about 490.4269096376.

The spelling of 117956771 in words is "one hundred seventeen million, nine hundred fifty-six thousand, seven hundred seventy-one".