856228974 has 8 divisors (see below), whose sum is σ = 1712457960. Its totient is φ = 285409656.

The previous prime is 856228963. The next prime is 856229051. The reversal of 856228974 is 479822658.

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

856228974 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71352409 + ... + 71352420.

It is an arithmetic number, because the mean of its divisors is an integer number (214057245).

Almost surely, 2^856228974 is an apocalyptic number.

856228974 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

856228974 is a wasteful number, since it uses less digits than its factorization.

856228974 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142704834.

The product of its digits is 1935360, while the sum is 51.

The square root of 856228974 is about 29261.3905001112. The cubic root of 856228974 is about 949.5765329646.

The spelling of 856228974 in words is "eight hundred fifty-six million, two hundred twenty-eight thousand, nine hundred seventy-four".