117171679 has 2 divisors, whose sum is σ = 117171680. Its totient is φ = 117171678.

The previous prime is 117171673. The next prime is 117171721. The reversal of 117171679 is 976171711.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 117171679 - 2³ = 117171671 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (117171671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58585839 + 58585840.

It is an arithmetic number, because the mean of its divisors is an integer number (58585840).

Almost surely, 2^117171679 is an apocalyptic number.

117171679 is a deficient number, since it is larger than the sum of its proper divisors (1).

117171679 is an equidigital number, since it uses as much as digits as its factorization.

117171679 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18522, while the sum is 40.

The square root of 117171679 is about 10824.5867819515. The cubic root of 117171679 is about 489.3364320675.

The spelling of 117171679 in words is "one hundred seventeen million, one hundred seventy-one thousand, six hundred seventy-nine".