6397558 has 16 divisors (see below), whose sum is σ = 9999360. Its totient is φ = 3067200.

The previous prime is 6397553. The next prime is 6397571. The reversal of 6397558 is 8557936.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6397553) 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 in 7 ways as a sum of consecutive naturals, for example, 4363 + ... + 5641.

It is an arithmetic number, because the mean of its divisors is an integer number (624960).

Almost surely, 2^6397558 is an apocalyptic number.

6397558 is a deficient number, since it is larger than the sum of its proper divisors (3601802).

6397558 is a wasteful number, since it uses less digits than its factorization.

6397558 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1383.

The product of its digits is 226800, while the sum is 43.

The square root of 6397558 is about 2529.3394394585. The cubic root of 6397558 is about 185.6399362573.

The spelling of 6397558 in words is "six million, three hundred ninety-seven thousand, five hundred fifty-eight".