856484284 has 12 divisors (see below), whose sum is σ = 1501321024. Its totient is φ = 427535424.

The previous prime is 856484269. The next prime is 856484309. The reversal of 856484284 is 482484658.

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, 173949 + ... + 178804.

Almost surely, 2^856484284 is an apocalyptic number.

It is an amenable number.

856484284 is a deficient number, since it is larger than the sum of its proper divisors (644836740).

856484284 is a wasteful number, since it uses less digits than its factorization.

856484284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 353364 (or 353362 counting only the distinct ones).

The product of its digits is 1966080, while the sum is 49.

The square root of 856484284 is about 29265.7527495877. The cubic root of 856484284 is about 949.6709050307.

The spelling of 856484284 in words is "eight hundred fifty-six million, four hundred eighty-four thousand, two hundred eighty-four".