850085427 has 4 divisors (see below), whose sum is σ = 1133447240. Its totient is φ = 566723616.

The previous prime is 850085413. The next prime is 850085429. The reversal of 850085427 is 724580058.

850085427 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 850085427 - 2⁶ = 850085363 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (850085429) 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, 141680902 + ... + 141680907.

It is an arithmetic number, because the mean of its divisors is an integer number (283361810).

Almost surely, 2^850085427 is an apocalyptic number.

850085427 is a deficient number, since it is larger than the sum of its proper divisors (283361813).

850085427 is a wasteful number, since it uses less digits than its factorization.

850085427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 283361812.

The product of its (nonzero) digits is 89600, while the sum is 39.

The square root of 850085427 is about 29156.2244983811. The cubic root of 850085427 is about 947.2999703517.

The spelling of 850085427 in words is "eight hundred fifty million, eighty-five thousand, four hundred twenty-seven".