850470811 has 4 divisors (see below), whose sum is σ = 851960824. Its totient is φ = 848980800.

The previous prime is 850470769. The next prime is 850470821. The reversal of 850470811 is 118074058.

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

It is a cyclic number.

It is not a de Polignac number, because 850470811 - 2¹¹ = 850468763 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (850470821) 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, 744150 + ... + 745291.

It is an arithmetic number, because the mean of its divisors is an integer number (212990206).

Almost surely, 2^850470811 is an apocalyptic number.

850470811 is a deficient number, since it is larger than the sum of its proper divisors (1490013).

850470811 is a wasteful number, since it uses less digits than its factorization.

850470811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1490012.

The product of its (nonzero) digits is 8960, while the sum is 34.

The square root of 850470811 is about 29162.8326984880. The cubic root of 850470811 is about 947.4431007108.

The spelling of 850470811 in words is "eight hundred fifty million, four hundred seventy thousand, eight hundred eleven".