117447317 has 4 divisors (see below), whose sum is σ = 126481740. Its totient is φ = 108412896.

The previous prime is 117447307. The next prime is 117447359. The reversal of 117447317 is 713744711.

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

It can be written as a sum of positive squares in 2 ways, for example, as 33651601 + 83795716 = 5801^2 + 9154^2 .

It is a cyclic number.

It is not a de Polignac number, because 117447317 - 2²⁰ = 116398741 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 (117447307) 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, 4517192 + ... + 4517217.

It is an arithmetic number, because the mean of its divisors is an integer number (31620435).

Almost surely, 2^117447317 is an apocalyptic number.

It is an amenable number.

117447317 is a deficient number, since it is larger than the sum of its proper divisors (9034423).

117447317 is an equidigital number, since it uses as much as digits as its factorization.

117447317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9034422.

The product of its digits is 16464, while the sum is 35.

The square root of 117447317 is about 10837.3113363048. The cubic root of 117447317 is about 489.7198412373.

The spelling of 117447317 in words is "one hundred seventeen million, four hundred forty-seven thousand, three hundred seventeen".