117506717 has 4 divisors (see below), whose sum is σ = 117663936. Its totient is φ = 117349500.

The previous prime is 117506707. The next prime is 117506723. The reversal of 117506717 is 717605711.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 717605711 = 67 ⋅10710533.

It is a cyclic number.

It is not a de Polignac number, because 117506717 - 2¹² = 117502621 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 (117506707) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 77483 + ... + 78984.

It is an arithmetic number, because the mean of its divisors is an integer number (29415984).

Almost surely, 2^117506717 is an apocalyptic number.

It is an amenable number.

117506717 is a deficient number, since it is larger than the sum of its proper divisors (157219).

117506717 is an equidigital number, since it uses as much as digits as its factorization.

117506717 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157218.

The product of its (nonzero) digits is 10290, while the sum is 35.

The square root of 117506717 is about 10840.0515220178. The cubic root of 117506717 is about 489.8023873429.

The spelling of 117506717 in words is "one hundred seventeen million, five hundred six thousand, seven hundred seventeen".