856837328 has 20 divisors (see below), whose sum is σ = 1665058980. Its totient is φ = 427144704.

The previous prime is 856837321. The next prime is 856837351. The reversal of 856837328 is 823738658.

It can be written as a sum of positive squares in 2 ways, for example, as 147573904 + 709263424 = 12148^2 + 26632^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (856837321) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74063 + ... + 84846.

It is an arithmetic number, because the mean of its divisors is an integer number (83252949).

Almost surely, 2^856837328 is an apocalyptic number.

It is an amenable number.

856837328 is a deficient number, since it is larger than the sum of its proper divisors (808221652).

856837328 is a wasteful number, since it uses less digits than its factorization.

856837328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159254 (or 159248 counting only the distinct ones).

The product of its digits is 1935360, while the sum is 50.

The square root of 856837328 is about 29271.7838199178. The cubic root of 856837328 is about 949.8013723239.

The spelling of 856837328 in words is "eight hundred fifty-six million, eight hundred thirty-seven thousand, three hundred twenty-eight".