850071218 has 8 divisors (see below), whose sum is σ = 1289434140. Its totient is φ = 420259840.

The previous prime is 850071217. The next prime is 850071239. The reversal of 850071218 is 812170058.

It is a happy number.

850071218 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 823517809 + 26553409 = 28697^2 + 5153^2 .

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

It is not an unprimeable number, because it can be changed into a prime (850071217) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2387663 + ... + 2388018.

Almost surely, 2^850071218 is an apocalyptic number.

850071218 is a deficient number, since it is larger than the sum of its proper divisors (439362922).

850071218 is a wasteful number, since it uses less digits than its factorization.

850071218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4775772.

The product of its (nonzero) digits is 4480, while the sum is 32.

The square root of 850071218 is about 29155.9808272677. The cubic root of 850071218 is about 947.2946923488.

The spelling of 850071218 in words is "eight hundred fifty million, seventy-one thousand, two hundred eighteen".