850807785 has 16 divisors (see below), whose sum is σ = 1398085056. Its totient is φ = 441499968.

The previous prime is 850807757. The next prime is 850807787. The reversal of 850807785 is 587708058.

It is not a de Polignac number, because 850807785 - 2¹² = 850803689 is a prime.

It is not an unprimeable number, because it can be changed into a prime (850807787) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 765939 + ... + 767048.

It is an arithmetic number, because the mean of its divisors is an integer number (87380316).

Almost surely, 2^850807785 is an apocalyptic number.

It is an amenable number.

850807785 is a deficient number, since it is larger than the sum of its proper divisors (547277271).

850807785 is a wasteful number, since it uses less digits than its factorization.

850807785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1533032.

The product of its (nonzero) digits is 627200, while the sum is 48.

The square root of 850807785 is about 29168.6095829061. The cubic root of 850807785 is about 947.5682163253.

The spelling of 850807785 in words is "eight hundred fifty million, eight hundred seven thousand, seven hundred eighty-five".