860599913 has 2 divisors, whose sum is σ = 860599914. Its totient is φ = 860599912.

The previous prime is 860599843. The next prime is 860599919. The reversal of 860599913 is 319995068.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 481012624 + 379587289 = 21932^2 + 19483^2 .

It is a cyclic number.

It is not a de Polignac number, because 860599913 - 2¹⁸ = 860337769 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (860599919) 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, 430299956 + 430299957.

It is an arithmetic number, because the mean of its divisors is an integer number (430299957).

Almost surely, 2^860599913 is an apocalyptic number.

It is an amenable number.

860599913 is a deficient number, since it is larger than the sum of its proper divisors (1).

860599913 is an equidigital number, since it uses as much as digits as its factorization.

860599913 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 524880, while the sum is 50.

The square root of 860599913 is about 29335.9832458365. The cubic root of 860599913 is about 951.1896133163.

The spelling of 860599913 in words is "eight hundred sixty million, five hundred ninety-nine thousand, nine hundred thirteen".