856967076 has 243 divisors, whose sum is σ = 2743720707. Its totient is φ = 224824320.

The previous prime is 856967063. The next prime is 856967087. The reversal of 856967076 is 670769658.

It is a happy number.

The square root of 856967076 is 29274.

It is a perfect power (a square), and thus also a powerful number.

856967076 is a `hidden beast` number, since 8 + 569 + 6 + 7 + 0 + 76 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 60372900 + 796594176 = 7770^2 + 28224^2 .

It is an alternating number because its digits alternate between even and odd.

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 80 ways as a sum of consecutive naturals, for example, 20901616 + ... + 20901656.

Almost surely, 2^856967076 is an apocalyptic number.

856967076 is the 29274-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 856967076

856967076 is an abundant number, since it is smaller than the sum of its proper divisors (1886753631).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

856967076 is a wasteful number, since it uses less digits than its factorization.

856967076 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140 (or 70 counting only the distinct ones).

The product of its (nonzero) digits is 3810240, while the sum is 54.

The cubic root of 856967076 is about 949.8493116486.

The spelling of 856967076 in words is "eight hundred fifty-six million, nine hundred sixty-seven thousand, seventy-six".