6577891 has 2 divisors, whose sum is σ = 6577892. Its totient is φ = 6577890.

The previous prime is 6577873. The next prime is 6577913. The reversal of 6577891 is 1987756.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6577891 - 2⁷ = 6577763 is a prime.

It is not a weakly prime, because it can be changed into another prime (6577801) 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, 3288945 + 3288946.

It is an arithmetic number, because the mean of its divisors is an integer number (3288946).

Almost surely, 2^6577891 is an apocalyptic number.

6577891 is a deficient number, since it is larger than the sum of its proper divisors (1).

6577891 is an equidigital number, since it uses as much as digits as its factorization.

6577891 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 105840, while the sum is 43.

The square root of 6577891 is about 2564.7399478310. The cubic root of 6577891 is about 187.3680588804.

The spelling of 6577891 in words is "six million, five hundred seventy-seven thousand, eight hundred ninety-one".