6205891 has 2 divisors, whose sum is σ = 6205892. Its totient is φ = 6205890.

The previous prime is 6205879. The next prime is 6205931. The reversal of 6205891 is 1985026.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6205891 - 2¹⁹ = 5681603 is a prime.

6205891 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (6205831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3102945 + 3102946.

It is an arithmetic number, because the mean of its divisors is an integer number (3102946).

Almost surely, 2^6205891 is an apocalyptic number.

6205891 is a deficient number, since it is larger than the sum of its proper divisors (1).

6205891 is an equidigital number, since it uses as much as digits as its factorization.

6205891 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4320, while the sum is 31.

The square root of 6205891 is about 2491.1625800016. The cubic root of 6205891 is about 183.7672209939.

The spelling of 6205891 in words is "six million, two hundred five thousand, eight hundred ninety-one".