859601 has 2 divisors, whose sum is σ = 859602. Its totient is φ = 859600.

The previous prime is 859577. The next prime is 859603. The reversal of 859601 is 106958.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 678976 + 180625 = 824^2 + 425^2 .

It is a cyclic number.

It is not a de Polignac number, because 859601 - 2¹⁰ = 858577 is a prime.

It is a Sophie Germain prime.

Together with 859603, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a plaindrome in base 12.

It is not a weakly prime, because it can be changed into another prime (859603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 429800 + 429801.

It is an arithmetic number, because the mean of its divisors is an integer number (429801).

2⁸⁵⁹⁶⁰¹ is an apocalyptic number.

It is an amenable number.

859601 is a deficient number, since it is larger than the sum of its proper divisors (1).

859601 is an equidigital number, since it uses as much as digits as its factorization.

859601 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2160, while the sum is 29.

The square root of 859601 is about 927.1466982091. The cubic root of 859601 is about 95.0821450165.

The spelling of 859601 in words is "eight hundred fifty-nine thousand, six hundred one".