856812422 has 8 divisors (see below), whose sum is σ = 1341097776. Its totient is φ = 409779832.

The previous prime is 856812421. The next prime is 856812487. The reversal of 856812422 is 224218658.

856812422 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (856812421) 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, 9313133 + ... + 9313224.

It is an arithmetic number, because the mean of its divisors is an integer number (167637222).

Almost surely, 2^856812422 is an apocalyptic number.

856812422 is a deficient number, since it is larger than the sum of its proper divisors (484285354).

856812422 is a wasteful number, since it uses less digits than its factorization.

856812422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18626382.

The product of its digits is 61440, while the sum is 38.

The square root of 856812422 is about 29271.3583900713. The cubic root of 856812422 is about 949.7921694949.

The spelling of 856812422 in words is "eight hundred fifty-six million, eight hundred twelve thousand, four hundred twenty-two".