857571713 has 2 divisors, whose sum is σ = 857571714. Its totient is φ = 857571712.

The previous prime is 857571697. The next prime is 857571763. The reversal of 857571713 is 317175758.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 848673424 + 8898289 = 29132^2 + 2983^2 .

It is a cyclic number.

It is not a de Polignac number, because 857571713 - 2⁴ = 857571697 is a prime.

It is not a weakly prime, because it can be changed into another prime (857571763) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 428785856 + 428785857.

It is an arithmetic number, because the mean of its divisors is an integer number (428785857).

Almost surely, 2^857571713 is an apocalyptic number.

It is an amenable number.

857571713 is a deficient number, since it is larger than the sum of its proper divisors (1).

857571713 is an equidigital number, since it uses as much as digits as its factorization.

857571713 is an evil number, because the sum of its binary digits is even.

The product of its digits is 205800, while the sum is 44.

The square root of 857571713 is about 29284.3253806537. The cubic root of 857571713 is about 950.0726492918.

The spelling of 857571713 in words is "eight hundred fifty-seven million, five hundred seventy-one thousand, seven hundred thirteen".