856836304 has 10 divisors (see below), whose sum is σ = 1660120370. Its totient is φ = 428418144.

The previous prime is 856836287. The next prime is 856836377. The reversal of 856836304 is 403638658.

It can be written as a sum of positive squares in only one way, i.e., 531394704 + 325441600 = 23052^2 + 18040^2 .

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 26776119 + ... + 26776150.

It is an arithmetic number, because the mean of its divisors is an integer number (166012037).

Almost surely, 2^856836304 is an apocalyptic number.

It is an amenable number.

856836304 is a deficient number, since it is larger than the sum of its proper divisors (803284066).

856836304 is a wasteful number, since it uses less digits than its factorization.

856836304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53552277 (or 53552271 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 43.

The square root of 856836304 is about 29271.7663286656. The cubic root of 856836304 is about 949.8009939569.

The spelling of 856836304 in words is "eight hundred fifty-six million, eight hundred thirty-six thousand, three hundred four".