117707487 has 4 divisors (see below), whose sum is σ = 156943320. Its totient is φ = 78471656.

The previous prime is 117707483. The next prime is 117707501. The reversal of 117707487 is 784707711.

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 117707487 - 2² = 117707483 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117707483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19617912 + ... + 19617917.

It is an arithmetic number, because the mean of its divisors is an integer number (39235830).

Almost surely, 2^117707487 is an apocalyptic number.

117707487 is a deficient number, since it is larger than the sum of its proper divisors (39235833).

117707487 is an equidigital number, since it uses as much as digits as its factorization.

117707487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39235832.

The product of its (nonzero) digits is 76832, while the sum is 42.

The square root of 117707487 is about 10849.3081346231. The cubic root of 117707487 is about 490.0811846602.

The spelling of 117707487 in words is "one hundred seventeen million, seven hundred seven thousand, four hundred eighty-seven".