117755782 has 4 divisors (see below), whose sum is σ = 176633676. Its totient is φ = 58877890.

The previous prime is 117755779. The next prime is 117755839. The reversal of 117755782 is 287557711.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 287557711 = 7 ⋅41079673.

It is a congruent number.

It is an unprimeable number.

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, 29438944 + ... + 29438947.

It is an arithmetic number, because the mean of its divisors is an integer number (44158419).

Almost surely, 2^117755782 is an apocalyptic number.

117755782 is a deficient number, since it is larger than the sum of its proper divisors (58877894).

117755782 is an equidigital number, since it uses as much as digits as its factorization.

117755782 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58877893.

The product of its digits is 137200, while the sum is 43.

The square root of 117755782 is about 10851.5336243316. The cubic root of 117755782 is about 490.1482017354.

The spelling of 117755782 in words is "one hundred seventeen million, seven hundred fifty-five thousand, seven hundred eighty-two".