117757587 has 4 divisors (see below), whose sum is σ = 157010120. Its totient is φ = 78505056.

The previous prime is 117757571. The next prime is 117757609. The reversal of 117757587 is 785757711.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 117757587 - 2⁴ = 117757571 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (117757517) 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 in 3 ways as a sum of consecutive naturals, for example, 19626262 + ... + 19626267.

It is an arithmetic number, because the mean of its divisors is an integer number (39252530).

Almost surely, 2^117757587 is an apocalyptic number.

117757587 is a deficient number, since it is larger than the sum of its proper divisors (39252533).

117757587 is an equidigital number, since it uses as much as digits as its factorization.

117757587 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39252532.

The product of its digits is 480200, while the sum is 48.

The square root of 117757587 is about 10851.6167919808. The cubic root of 117757587 is about 490.1507061078.

The spelling of 117757587 in words is "one hundred seventeen million, seven hundred fifty-seven thousand, five hundred eighty-seven".