6005861 has 2 divisors, whose sum is σ = 6005862. Its totient is φ = 6005860.

The previous prime is 6005851. The next prime is 6005863. The reversal of 6005861 is 1685006.

6005861 is digitally balanced in base 3, 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., 5909761 + 96100 = 2431^2 + 310^2 .

It is a cyclic number.

It is not a de Polignac number, because 6005861 - 2¹⁰ = 6004837 is a prime.

It is a super-3 number, since 3×6005861³ (a number of 21 digits) contains 333 as substring.

It is a Sophie Germain prime.

Together with 6005863, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 6005861.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6005863) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3002930 + 3002931.

It is an arithmetic number, because the mean of its divisors is an integer number (3002931).

Almost surely, 2^6005861 is an apocalyptic number.

It is an amenable number.

6005861 is a deficient number, since it is larger than the sum of its proper divisors (1).

6005861 is an equidigital number, since it uses as much as digits as its factorization.

6005861 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 6005861 is about 2450.6858223771. The cubic root of 6005861 is about 181.7712074936.

The spelling of 6005861 in words is "six million, five thousand, eight hundred sixty-one".