860042017 has 2 divisors, whose sum is σ = 860042018. Its totient is φ = 860042016.

The previous prime is 860041979. The next prime is 860042033. The reversal of 860042017 is 710240068.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 709636321 + 150405696 = 26639^2 + 12264^2 .

It is a cyclic number.

It is not a de Polignac number, because 860042017 - 2²³ = 851653409 is a prime.

It is not a weakly prime, because it can be changed into another prime (860042047) 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, 430021008 + 430021009.

It is an arithmetic number, because the mean of its divisors is an integer number (430021009).

Almost surely, 2^860042017 is an apocalyptic number.

It is an amenable number.

860042017 is a deficient number, since it is larger than the sum of its proper divisors (1).

860042017 is an equidigital number, since it uses as much as digits as its factorization.

860042017 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 860042017 is about 29326.4729723845. The cubic root of 860042017 is about 950.9840282029.

The spelling of 860042017 in words is "eight hundred sixty million, forty-two thousand, seventeen".