117777117 has 8 divisors (see below), whose sum is σ = 158000224. Its totient is φ = 78036048.

The previous prime is 117777103. The next prime is 117777151. The reversal of 117777117 is 711777711.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 117777117 - 2⁶ = 117777053 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117777197) 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 7 ways as a sum of consecutive naturals, for example, 119938 + ... + 120915.

It is an arithmetic number, because the mean of its divisors is an integer number (19750028).

Almost surely, 2^117777117 is an apocalyptic number.

It is an amenable number.

117777117 is a deficient number, since it is larger than the sum of its proper divisors (40223107).

117777117 is a wasteful number, since it uses less digits than its factorization.

117777117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 241019.

The product of its digits is 16807, while the sum is 39.

The square root of 117777117 is about 10852.5166205816. The cubic root of 117777117 is about 490.1778016419.

It can be divided in two parts, 1177 and 77117, that multiplied together give a palindrome (90766709).

The spelling of 117777117 in words is "one hundred seventeen million, seven hundred seventy-seven thousand, one hundred seventeen".