859913 has 2 divisors, whose sum is σ = 859914. Its totient is φ = 859912.

The previous prime is 859891. The next prime is 859919. The reversal of 859913 is 319958.

859913 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 537289 + 322624 = 733^2 + 568^2 .

It is a cyclic number.

It is not a de Polignac number, because 859913 - 2⁶ = 859849 is a prime.

It is not a weakly prime, because it can be changed into another prime (859919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 429956 + 429957.

It is an arithmetic number, because the mean of its divisors is an integer number (429957).

2⁸⁵⁹⁹¹³ is an apocalyptic number.

It is an amenable number.

859913 is a deficient number, since it is larger than the sum of its proper divisors (1).

859913 is an equidigital number, since it uses as much as digits as its factorization.

859913 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9720, while the sum is 35.

The square root of 859913 is about 927.3149411068. The cubic root of 859913 is about 95.0936472681.

The spelling of 859913 in words is "eight hundred fifty-nine thousand, nine hundred thirteen".