117956087 has 2 divisors, whose sum is σ = 117956088. Its totient is φ = 117956086.

The previous prime is 117956077. The next prime is 117956089. The reversal of 117956087 is 780659711.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 117956087 - 2¹⁸ = 117693943 is a prime.

Together with 117956089, 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 (117956089) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58978043 + 58978044.

It is an arithmetic number, because the mean of its divisors is an integer number (58978044).

Almost surely, 2^117956087 is an apocalyptic number.

117956087 is a deficient number, since it is larger than the sum of its proper divisors (1).

117956087 is an equidigital number, since it uses as much as digits as its factorization.

117956087 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 105840, while the sum is 44.

The square root of 117956087 is about 10860.7590434555. The cubic root of 117956087 is about 490.4259616840.

The spelling of 117956087 in words is "one hundred seventeen million, nine hundred fifty-six thousand, eighty-seven".