856338825 has 48 divisors (see below), whose sum is σ = 1495975680. Its totient is φ = 431531520.

The previous prime is 856338799. The next prime is 856338853. The reversal of 856338825 is 528833658.

It is not a de Polignac number, because 856338825 - 2⁷ = 856338697 is a prime.

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 47 ways as a sum of consecutive naturals, for example, 98037 + ... + 106413.

It is an arithmetic number, because the mean of its divisors is an integer number (31166160).

Almost surely, 2^856338825 is an apocalyptic number.

It is an amenable number.

856338825 is a deficient number, since it is larger than the sum of its proper divisors (639636855).

856338825 is a wasteful number, since it uses less digits than its factorization.

856338825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8466 (or 8461 counting only the distinct ones).

The product of its digits is 1382400, while the sum is 48.

The square root of 856338825 is about 29263.2675038178. The cubic root of 856338825 is about 949.6171402765.

The spelling of 856338825 in words is "eight hundred fifty-six million, three hundred thirty-eight thousand, eight hundred twenty-five".