853257859 has 2 divisors, whose sum is σ = 853257860. Its totient is φ = 853257858.

The previous prime is 853257827. The next prime is 853257869. The reversal of 853257859 is 958752358.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 853257859 - 2⁵ = 853257827 is a prime.

It is not a weakly prime, because it can be changed into another prime (853257869) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 426628929 + 426628930.

It is an arithmetic number, because the mean of its divisors is an integer number (426628930).

Almost surely, 2^853257859 is an apocalyptic number.

853257859 is a deficient number, since it is larger than the sum of its proper divisors (1).

853257859 is an equidigital number, since it uses as much as digits as its factorization.

853257859 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3024000, while the sum is 52.

The square root of 853257859 is about 29210.5778614529. The cubic root of 853257859 is about 948.4769163988.

The spelling of 853257859 in words is "eight hundred fifty-three million, two hundred fifty-seven thousand, eight hundred fifty-nine".