856053047 has 2 divisors, whose sum is σ = 856053048. Its totient is φ = 856053046.

The previous prime is 856053013. The next prime is 856053061. The reversal of 856053047 is 740350658.

856053047 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 856053047 - 2¹⁰ = 856052023 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 856053047.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (856053097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 428026523 + 428026524.

It is an arithmetic number, because the mean of its divisors is an integer number (428026524).

Almost surely, 2^856053047 is an apocalyptic number.

856053047 is a deficient number, since it is larger than the sum of its proper divisors (1).

856053047 is an equidigital number, since it uses as much as digits as its factorization.

856053047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 100800, while the sum is 38.

The square root of 856053047 is about 29258.3842171778. The cubic root of 856053047 is about 949.5114928882.

The spelling of 856053047 in words is "eight hundred fifty-six million, fifty-three thousand, forty-seven".