117847305 has 80 divisors (see below), whose sum is σ = 221563584. Its totient is φ = 59875200.

The previous prime is 117847273. The next prime is 117847309. The reversal of 117847305 is 503748711.

It is not a de Polignac number, because 117847305 - 2⁵ = 117847273 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 117847305.

It is not an unprimeable number, because it can be changed into a prime (117847309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 1166755 + ... + 1166855.

Almost surely, 2^117847305 is an apocalyptic number.

117847305 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

117847305 is a deficient number, since it is larger than the sum of its proper divisors (103716279).

117847305 is a wasteful number, since it uses less digits than its factorization.

117847305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228 (or 219 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 36.

The square root of 117847305 is about 10855.7498589457. The cubic root of 117847305 is about 490.2751543601.

The spelling of 117847305 in words is "one hundred seventeen million, eight hundred forty-seven thousand, three hundred five".