856003916 has 12 divisors (see below), whose sum is σ = 1498254240. Its totient is φ = 427931280.

The previous prime is 856003879. The next prime is 856003937. The reversal of 856003916 is 619300658.

It is a self number, because there is not a number n which added to its sum of digits gives 856003916.

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 3 ways as a sum of consecutive naturals, for example, 17246 + ... + 44826.

It is an arithmetic number, because the mean of its divisors is an integer number (124854520).

Almost surely, 2^856003916 is an apocalyptic number.

It is an amenable number.

856003916 is a deficient number, since it is larger than the sum of its proper divisors (642250324).

856003916 is a wasteful number, since it uses less digits than its factorization.

856003916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35344 (or 35342 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 38.

The square root of 856003916 is about 29257.5445996413. The cubic root of 856003916 is about 949.4933276036.

The spelling of 856003916 in words is "eight hundred fifty-six million, three thousand, nine hundred sixteen".