856964922 has 32 divisors (see below), whose sum is σ = 1871852544. Its totient is φ = 259393200.

The previous prime is 856964921. The next prime is 856964939. The reversal of 856964922 is 229469658.

It is not an unprimeable number, because it can be changed into a prime (856964921) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55647 + ... + 69357.

It is an arithmetic number, because the mean of its divisors is an integer number (58495392).

Almost surely, 2^856964922 is an apocalyptic number.

856964922 is an abundant number, since it is smaller than the sum of its proper divisors (1014887622).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

856964922 is a wasteful number, since it uses less digits than its factorization.

856964922 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14674.

The product of its digits is 1866240, while the sum is 51.

The square root of 856964922 is about 29273.9632096510. The cubic root of 856964922 is about 949.8485158276.

The spelling of 856964922 in words is "eight hundred fifty-six million, nine hundred sixty-four thousand, nine hundred twenty-two".