117085287 has 12 divisors (see below), whose sum is σ = 171596600. Its totient is φ = 70960560.

The previous prime is 117085261. The next prime is 117085301. The reversal of 117085287 is 782580711.

It is not a de Polignac number, because 117085287 - 2⁶ = 117085223 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117085207) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 160912 + ... + 161637.

Almost surely, 2^117085287 is an apocalyptic number.

117085287 is a deficient number, since it is larger than the sum of its proper divisors (54511313).

117085287 is a wasteful number, since it uses less digits than its factorization.

117085287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 322574 (or 322563 counting only the distinct ones).

The product of its (nonzero) digits is 31360, while the sum is 39.

The square root of 117085287 is about 10820.5955011728. The cubic root of 117085287 is about 489.2161380752.

The spelling of 117085287 in words is "one hundred seventeen million, eighty-five thousand, two hundred eighty-seven".