117806471 has 2 divisors, whose sum is σ = 117806472. Its totient is φ = 117806470.

The previous prime is 117806467. The next prime is 117806473. The reversal of 117806471 is 174608711.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 117806471 - 2² = 117806467 is a prime.

It is a super-3 number, since 3×117806471³ (a number of 25 digits) contains 333 as substring.

Together with 117806473, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (117806473) 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, 58903235 + 58903236.

It is an arithmetic number, because the mean of its divisors is an integer number (58903236).

Almost surely, 2^117806471 is an apocalyptic number.

117806471 is a deficient number, since it is larger than the sum of its proper divisors (1).

117806471 is an equidigital number, since it uses as much as digits as its factorization.

117806471 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9408, while the sum is 35.

The square root of 117806471 is about 10853.8689415342. The cubic root of 117806471 is about 490.2185211646.

The spelling of 117806471 in words is "one hundred seventeen million, eight hundred six thousand, four hundred seventy-one".