859025857 has 2 divisors, whose sum is σ = 859025858. Its totient is φ = 859025856.

The previous prime is 859025831. The next prime is 859025879. The reversal of 859025857 is 758520958.

859025857 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 can be written as a sum of positive squares in only one way, i.e., 478034496 + 380991361 = 21864^2 + 19519^2 .

It is a cyclic number.

It is not a de Polignac number, because 859025857 - 2¹⁵ = 858993089 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 859025857.

It is not a weakly prime, because it can be changed into another prime (859025807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 429512928 + 429512929.

It is an arithmetic number, because the mean of its divisors is an integer number (429512929).

Almost surely, 2^859025857 is an apocalyptic number.

It is an amenable number.

859025857 is a deficient number, since it is larger than the sum of its proper divisors (1).

859025857 is an equidigital number, since it uses as much as digits as its factorization.

859025857 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1008000, while the sum is 49.

The square root of 859025857 is about 29309.1428909137. The cubic root of 859025857 is about 950.6093438851.

The spelling of 859025857 in words is "eight hundred fifty-nine million, twenty-five thousand, eight hundred fifty-seven".