6681597 has 32 divisors (see below), whose sum is σ = 10321920. Its totient is φ = 3810240.

The previous prime is 6681589. The next prime is 6681637. The reversal of 6681597 is 7951866.

It is not a de Polignac number, because 6681597 - 2³ = 6681589 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6681547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 52548 + ... + 52674.

It is an arithmetic number, because the mean of its divisors is an integer number (322560).

Almost surely, 2^6681597 is an apocalyptic number.

It is an amenable number.

6681597 is a deficient number, since it is larger than the sum of its proper divisors (3640323).

6681597 is a wasteful number, since it uses less digits than its factorization.

6681597 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 233.

The product of its digits is 90720, while the sum is 42.

The square root of 6681597 is about 2584.8785271266. The cubic root of 6681597 is about 188.3476008370.

The spelling of 6681597 in words is "six million, six hundred eighty-one thousand, five hundred ninety-seven".