117503687 has 4 divisors (see below), whose sum is σ = 134289936. Its totient is φ = 100717440.

The previous prime is 117503653. The next prime is 117503689. The reversal of 117503687 is 786305711.

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 117503687 - 2¹⁰ = 117502663 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 117503687.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117503689) 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, 8393114 + ... + 8393127.

It is an arithmetic number, because the mean of its divisors is an integer number (33572484).

Almost surely, 2^117503687 is an apocalyptic number.

117503687 is a deficient number, since it is larger than the sum of its proper divisors (16786249).

117503687 is an equidigital number, since it uses as much as digits as its factorization.

117503687 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16786248.

The product of its (nonzero) digits is 35280, while the sum is 38.

The square root of 117503687 is about 10839.9117616335. The cubic root of 117503687 is about 489.7981773311.

The spelling of 117503687 in words is "one hundred seventeen million, five hundred three thousand, six hundred eighty-seven".