117788237 has 8 divisors (see below), whose sum is σ = 134830272. Its totient is φ = 100800000.

The previous prime is 117788197. The next prime is 117788243. The reversal of 117788237 is 732887711.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 117788237 - 2¹² = 117784141 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 (117788287) 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 7 ways as a sum of consecutive naturals, for example, 8639 + ... + 17612.

It is an arithmetic number, because the mean of its divisors is an integer number (16853784).

Almost surely, 2^117788237 is an apocalyptic number.

It is an amenable number.

117788237 is a deficient number, since it is larger than the sum of its proper divisors (17042035).

117788237 is an equidigital number, since it uses as much as digits as its factorization.

117788237 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26899.

The product of its digits is 131712, while the sum is 44.

The square root of 117788237 is about 10853.0289320539. The cubic root of 117788237 is about 490.1932279707.

The spelling of 117788237 in words is "one hundred seventeen million, seven hundred eighty-eight thousand, two hundred thirty-seven".