117503809 has 8 divisors (see below), whose sum is σ = 126023040. Its totient is φ = 109218096.

The previous prime is 117503797. The next prime is 117503839. The reversal of 117503809 is 908305711.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 117503809 - 2⁵ = 117503777 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (117503839) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57337 + ... + 59350.

It is an arithmetic number, because the mean of its divisors is an integer number (15752880).

Almost surely, 2^117503809 is an apocalyptic number.

117503809 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

117503809 is a deficient number, since it is larger than the sum of its proper divisors (8519231).

117503809 is a wasteful number, since it uses less digits than its factorization.

117503809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116759.

The product of its (nonzero) digits is 7560, while the sum is 34.

The square root of 117503809 is about 10839.9173889841. The cubic root of 117503809 is about 489.7983468445.

The spelling of 117503809 in words is "one hundred seventeen million, five hundred three thousand, eight hundred nine".