854687856 has 240 divisors, whose sum is σ = 2583834624. Its totient is φ = 242880000.

The previous prime is 854687839. The next prime is 854687861. The reversal of 854687856 is 658786458.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 854687796 and 854687805.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 8462206 + ... + 8462306.

Almost surely, 2^854687856 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 854687856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1291917312).

854687856 is an abundant number, since it is smaller than the sum of its proper divisors (1729146768).

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

854687856 is a wasteful number, since it uses less digits than its factorization.

854687856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212 (or 195 counting only the distinct ones).

The product of its digits is 12902400, while the sum is 57.

The square root of 854687856 is about 29235.0449974000. The cubic root of 854687856 is about 949.0064797028.

The spelling of 854687856 in words is "eight hundred fifty-four million, six hundred eighty-seven thousand, eight hundred fifty-six".