117686047 has 2 divisors, whose sum is σ = 117686048. Its totient is φ = 117686046.

The previous prime is 117686021. The next prime is 117686059. The reversal of 117686047 is 740686711.

It is a strong prime.

It is an emirp because it is prime and its reverse (740686711) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 117686047 - 2¹¹ = 117683999 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (117686347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58843023 + 58843024.

It is an arithmetic number, because the mean of its divisors is an integer number (58843024).

Almost surely, 2^117686047 is an apocalyptic number.

117686047 is a deficient number, since it is larger than the sum of its proper divisors (1).

117686047 is an equidigital number, since it uses as much as digits as its factorization.

117686047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 56448, while the sum is 40.

The square root of 117686047 is about 10848.3200081856. The cubic root of 117686047 is about 490.0514273387.

The spelling of 117686047 in words is "one hundred seventeen million, six hundred eighty-six thousand, forty-seven".