856654056 has 40 divisors (see below), whose sum is σ = 2399426370. Its totient is φ = 285551136.

The previous prime is 856654037. The next prime is 856654061. The reversal of 856654056 is 650456658.

It is a happy number.

856654056 is a `hidden beast` number, since 8 + 56 + 6 + 540 + 56 = 666.

It can be written as a sum of positive squares in only one way, i.e., 813960900 + 42693156 = 28530^2 + 6534^2 .

It is a super-2 number, since 2×856654056² = 1467712343322502272, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 660351 + ... + 661646.

Almost surely, 2^856654056 is an apocalyptic number.

It is an amenable number.

856654056 is an abundant number, since it is smaller than the sum of its proper divisors (1542772314).

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

856654056 is a wasteful number, since it uses less digits than its factorization.

856654056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1322015 (or 1322002 counting only the distinct ones).

The product of its (nonzero) digits is 864000, while the sum is 45.

The square root of 856654056 is about 29268.6531292439. The cubic root of 856654056 is about 949.7336486912.

The spelling of 856654056 in words is "eight hundred fifty-six million, six hundred fifty-four thousand, fifty-six".