850470885 has 72 divisors (see below), whose sum is σ = 1691044992. Its totient is φ = 394363200.

The previous prime is 850470847. The next prime is 850470889. The reversal of 850470885 is 588074058.

It is not a de Polignac number, because 850470885 - 2⁶ = 850470821 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 850470885.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (850470889) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 121840 + ... + 128630.

It is an arithmetic number, because the mean of its divisors is an integer number (23486736).

Almost surely, 2^850470885 is an apocalyptic number.

It is an amenable number.

850470885 is a deficient number, since it is larger than the sum of its proper divisors (840574107).

850470885 is a wasteful number, since it uses less digits than its factorization.

850470885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6847 (or 6833 counting only the distinct ones).

The product of its (nonzero) digits is 358400, while the sum is 45.

The square root of 850470885 is about 29162.8339672262. The cubic root of 850470885 is about 947.4431281900.

The spelling of 850470885 in words is "eight hundred fifty million, four hundred seventy thousand, eight hundred eighty-five".