857873059 has 2 divisors, whose sum is σ = 857873060. Its totient is φ = 857873058.

The previous prime is 857872987. The next prime is 857873063. The reversal of 857873059 is 950378758.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 857873059 - 2⁷ = 857872931 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 857872997 and 857873015.

It is not a weakly prime, because it can be changed into another prime (857873069) by changing a digit.

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 as a sum of consecutive naturals, namely, 428936529 + 428936530.

It is an arithmetic number, because the mean of its divisors is an integer number (428936530).

Almost surely, 2^857873059 is an apocalyptic number.

857873059 is a deficient number, since it is larger than the sum of its proper divisors (1).

857873059 is an equidigital number, since it uses as much as digits as its factorization.

857873059 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2116800, while the sum is 52.

The square root of 857873059 is about 29289.4701044590. The cubic root of 857873059 is about 950.1839197002.

The spelling of 857873059 in words is "eight hundred fifty-seven million, eight hundred seventy-three thousand, fifty-nine".