856046773 has 2 divisors, whose sum is σ = 856046774. Its totient is φ = 856046772.

The previous prime is 856046761. The next prime is 856046801. The reversal of 856046773 is 377640658.

856046773 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 611968644 + 244078129 = 24738^2 + 15623^2 .

It is a cyclic number.

It is not a de Polignac number, because 856046773 - 2²⁹ = 319175861 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (856046743) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 428023386 + 428023387.

It is an arithmetic number, because the mean of its divisors is an integer number (428023387).

Almost surely, 2^856046773 is an apocalyptic number.

It is an amenable number.

856046773 is a deficient number, since it is larger than the sum of its proper divisors (1).

856046773 is an equidigital number, since it uses as much as digits as its factorization.

856046773 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 846720, while the sum is 46.

The square root of 856046773 is about 29258.2769998508. The cubic root of 856046773 is about 949.5091732307.

The spelling of 856046773 in words is "eight hundred fifty-six million, forty-six thousand, seven hundred seventy-three".