850203243 has 8 divisors (see below), whose sum is σ = 1259560400. Its totient is φ = 566802144.

The previous prime is 850203239. The next prime is 850203251. The reversal of 850203243 is 342302058.

850203243 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 850203243 - 2² = 850203239 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 31489009 = 850203243 / (8 + 5 + 0 + 2 + 0 + 3 + 2 + 4 + 3).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (850203143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15744478 + ... + 15744531.

It is an arithmetic number, because the mean of its divisors is an integer number (157445050).

Almost surely, 2^850203243 is an apocalyptic number.

850203243 is a deficient number, since it is larger than the sum of its proper divisors (409357157).

850203243 is a wasteful number, since it uses less digits than its factorization.

850203243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31489018 (or 31489012 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 850203243 is about 29158.2448545862. The cubic root of 850203243 is about 947.3437314194.

The spelling of 850203243 in words is "eight hundred fifty million, two hundred three thousand, two hundred forty-three".