6856597 has 4 divisors (see below), whose sum is σ = 7479936. Its totient is φ = 6233260.

The previous prime is 6856589. The next prime is 6856601. The reversal of 6856597 is 7956586.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 6856597 - 2³ = 6856589 is a prime.

It is a Duffinian number.

6856597 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6856517) 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 3 ways as a sum of consecutive naturals, for example, 311653 + ... + 311674.

It is an arithmetic number, because the mean of its divisors is an integer number (1869984).

Almost surely, 2^6856597 is an apocalyptic number.

It is an amenable number.

6856597 is a deficient number, since it is larger than the sum of its proper divisors (623339).

6856597 is a wasteful number, since it uses less digits than its factorization.

6856597 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 623338.

The product of its digits is 453600, while the sum is 46.

The square root of 6856597 is about 2618.5104544378. The cubic root of 6856597 is about 189.9778090427.

It can be divided in two parts, 68 and 56597, that added together give a palindrome (56665).

The spelling of 6856597 in words is "six million, eight hundred fifty-six thousand, five hundred ninety-seven".