117593291 has 4 divisors (see below), whose sum is σ = 119204232. Its totient is φ = 115982352.

The previous prime is 117593269. The next prime is 117593293. The reversal of 117593291 is 192395711.

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

It is a cyclic number.

It is not a de Polignac number, because 117593291 - 2¹⁸ = 117331147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (117593293) 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, 805361 + ... + 805506.

It is an arithmetic number, because the mean of its divisors is an integer number (29801058).

Almost surely, 2^117593291 is an apocalyptic number.

117593291 is a deficient number, since it is larger than the sum of its proper divisors (1610941).

117593291 is an equidigital number, since it uses as much as digits as its factorization.

117593291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1610940.

The product of its digits is 17010, while the sum is 38.

The square root of 117593291 is about 10844.0440334775. The cubic root of 117593291 is about 489.9226464037.

The spelling of 117593291 in words is "one hundred seventeen million, five hundred ninety-three thousand, two hundred ninety-one".