117630387 has 80 divisors (see below), whose sum is σ = 216057600. Its totient is φ = 62285760.

The previous prime is 117630379. The next prime is 117630391. The reversal of 117630387 is 783036711.

117630387 is a `hidden beast` number, since 1 + 17 + 630 + 3 + 8 + 7 = 666.

It is not a de Polignac number, because 117630387 - 2³ = 117630379 is a prime.

It is not an unprimeable number, because it can be changed into a prime (117630307) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 657064 + ... + 657242.

It is an arithmetic number, because the mean of its divisors is an integer number (2700720).

Almost surely, 2^117630387 is an apocalyptic number.

117630387 is a deficient number, since it is larger than the sum of its proper divisors (98427213).

117630387 is a wasteful number, since it uses less digits than its factorization.

117630387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 278 (or 269 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 36.

The square root of 117630387 is about 10845.7543306125. The cubic root of 117630387 is about 489.9741580152.

The spelling of 117630387 in words is "one hundred seventeen million, six hundred thirty thousand, three hundred eighty-seven".