865545713 has 2 divisors, whose sum is σ = 865545714. Its totient is φ = 865545712.

The previous prime is 865545697. The next prime is 865545721. The reversal of 865545713 is 317545568.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 831053584 + 34492129 = 28828^2 + 5873^2 .

It is a cyclic number.

It is not a de Polignac number, because 865545713 - 2⁴ = 865545697 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (865548713) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 432772856 + 432772857.

It is an arithmetic number, because the mean of its divisors is an integer number (432772857).

Almost surely, 2^865545713 is an apocalyptic number.

It is an amenable number.

865545713 is a deficient number, since it is larger than the sum of its proper divisors (1).

865545713 is an equidigital number, since it uses as much as digits as its factorization.

865545713 is an evil number, because the sum of its binary digits is even.

The product of its digits is 504000, while the sum is 44.

The square root of 865545713 is about 29420.1582762568. The cubic root of 865545713 is about 953.0082711521.

The spelling of 865545713 in words is "eight hundred sixty-five million, five hundred forty-five thousand, seven hundred thirteen".