117287508 has 96 divisors (see below), whose sum is σ = 309084160. Its totient is φ = 34369920.

The previous prime is 117287507. The next prime is 117287537. The reversal of 117287508 is 805782711.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117287503) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 381891 + ... + 382197.

Almost surely, 2^117287508 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 117287508, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (154542080).

117287508 is an abundant number, since it is smaller than the sum of its proper divisors (191796652).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

117287508 is a wasteful number, since it uses less digits than its factorization.

117287508 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 437 (or 435 counting only the distinct ones).

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

The square root of 117287508 is about 10829.9357338813. The cubic root of 117287508 is about 489.4976219947.

The spelling of 117287508 in words is "one hundred seventeen million, two hundred eighty-seven thousand, five hundred eight".