6397897 has 8 divisors (see below), whose sum is σ = 7084512. Its totient is φ = 5728800.

The previous prime is 6397891. The next prime is 6397903. The reversal of 6397897 is 7987936.

It is an interprime number because it is at equal distance from previous prime (6397891) and next prime (6397903).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-6397897 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6397897.

It is not an unprimeable number, because it can be changed into a prime (6397891) 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, 3604 + ... + 5077.

It is an arithmetic number, because the mean of its divisors is an integer number (885564).

Almost surely, 2^6397897 is an apocalyptic number.

6397897 is a gapful number since it is divisible by the number (67) formed by its first and last digit.

It is an amenable number.

6397897 is a deficient number, since it is larger than the sum of its proper divisors (686615).

6397897 is a wasteful number, since it uses less digits than its factorization.

6397897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8759.

The product of its digits is 571536, while the sum is 49.

The square root of 6397897 is about 2529.4064521148. The cubic root of 6397897 is about 185.6432151556.

The spelling of 6397897 in words is "six million, three hundred ninety-seven thousand, eight hundred ninety-seven".