856064275 has 24 divisors (see below), whose sum is σ = 1160800704. Its totient is φ = 621098400.

The previous prime is 856064273. The next prime is 856064317. The reversal of 856064275 is 572460658.

It is not a de Polignac number, because 856064275 - 2¹ = 856064273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (856064273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 118312 + ... + 125338.

It is an arithmetic number, because the mean of its divisors is an integer number (48366696).

Almost surely, 2^856064275 is an apocalyptic number.

856064275 is a deficient number, since it is larger than the sum of its proper divisors (304736429).

856064275 is a wasteful number, since it uses less digits than its factorization.

856064275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7491 (or 7486 counting only the distinct ones).

The product of its (nonzero) digits is 403200, while the sum is 43.

The square root of 856064275 is about 29258.5760931731. The cubic root of 856064275 is about 949.5156441374.

The spelling of 856064275 in words is "eight hundred fifty-six million, sixty-four thousand, two hundred seventy-five".