117361687 has 4 divisors (see below), whose sum is σ = 118400400. Its totient is φ = 116322976.

The previous prime is 117361609. The next prime is 117361729. The reversal of 117361687 is 786163711.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 786163711 = 43 ⋅18282877.

It is a cyclic number.

It is not a de Polignac number, because 117361687 - 2²³ = 108973079 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117311687) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 519187 + ... + 519412.

It is an arithmetic number, because the mean of its divisors is an integer number (29600100).

Almost surely, 2^117361687 is an apocalyptic number.

117361687 is a deficient number, since it is larger than the sum of its proper divisors (1038713).

117361687 is a wasteful number, since it uses less digits than its factorization.

117361687 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1038712.

The product of its digits is 42336, while the sum is 40.

The square root of 117361687 is about 10833.3599127879. The cubic root of 117361687 is about 489.6007952213.

The spelling of 117361687 in words is "one hundred seventeen million, three hundred sixty-one thousand, six hundred eighty-seven".