850006811 has 4 divisors (see below), whose sum is σ = 851638824. Its totient is φ = 848374800.

The previous prime is 850006799. The next prime is 850006867. The reversal of 850006811 is 118600058.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-850006811 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (850206811) 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, 815225 + ... + 816266.

It is an arithmetic number, because the mean of its divisors is an integer number (212909706).

Almost surely, 2^850006811 is an apocalyptic number.

850006811 is a deficient number, since it is larger than the sum of its proper divisors (1632013).

850006811 is a wasteful number, since it uses less digits than its factorization.

850006811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1632012.

The product of its (nonzero) digits is 1920, while the sum is 29.

The square root of 850006811 is about 29154.8762816789. The cubic root of 850006811 is about 947.2707673140.

Adding to 850006811 its reverse (118600058), we get a palindrome (968606869).

The spelling of 850006811 in words is "eight hundred fifty million, six thousand, eight hundred eleven".