11605859 has 2 divisors, whose sum is σ = 11605860. Its totient is φ = 11605858.

The previous prime is 11605817. The next prime is 11605871. The reversal of 11605859 is 95850611.

11605859 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 is a cyclic number.

It is not a de Polignac number, because 11605859 - 2¹² = 11601763 is a prime.

It is a Chen prime.

It is equal to p₇₆₃₈₂₉ and since 11605859 and 763829 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (11605259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5802929 + 5802930.

It is an arithmetic number, because the mean of its divisors is an integer number (5802930).

Almost surely, 2^11605859 is an apocalyptic number.

11605859 is a deficient number, since it is larger than the sum of its proper divisors (1).

11605859 is an equidigital number, since it uses as much as digits as its factorization.

11605859 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10800, while the sum is 35.

The square root of 11605859 is about 3406.7372954192. The cubic root of 11605859 is about 226.4083449396.

The spelling of 11605859 in words is "eleven million, six hundred five thousand, eight hundred fifty-nine".