6591897 has 24 divisors (see below), whose sum is σ = 10372544. Its totient is φ = 4009824.

The previous prime is 6591889. The next prime is 6591899. The reversal of 6591897 is 7981956.

It is not a de Polignac number, because 6591897 - 2³ = 6591889 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6591899) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11778 + ... + 12324.

Almost surely, 2^6591897 is an apocalyptic number.

It is an amenable number.

6591897 is a deficient number, since it is larger than the sum of its proper divisors (3780647).

6591897 is a wasteful number, since it uses less digits than its factorization.

6591897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 669 (or 666 counting only the distinct ones).

The product of its digits is 136080, while the sum is 45.

The square root of 6591897 is about 2567.4689871545. The cubic root of 6591897 is about 187.5009493285.

It can be divided in two parts, 659 and 1897, that added together give a triangular number (2556 = T₇₁).

The spelling of 6591897 in words is "six million, five hundred ninety-one thousand, eight hundred ninety-seven".