6397111 has 4 divisors (see below), whose sum is σ = 7310992. Its totient is φ = 5483232.

The previous prime is 6397109. The next prime is 6397121. The reversal of 6397111 is 1117936.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 6397111 - 2¹ = 6397109 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 6397111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6397121) 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, 456930 + ... + 456943.

It is an arithmetic number, because the mean of its divisors is an integer number (1827748).

Almost surely, 2^6397111 is an apocalyptic number.

6397111 is a deficient number, since it is larger than the sum of its proper divisors (913881).

6397111 is an equidigital number, since it uses as much as digits as its factorization.

6397111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 913880.

The product of its digits is 1134, while the sum is 28.

The square root of 6397111 is about 2529.2510749232. The cubic root of 6397111 is about 185.6356125771.

It can be divided in two parts, 639 and 7111, that added together give a triangular number (7750 = T₁₂₄).

The spelling of 6397111 in words is "six million, three hundred ninety-seven thousand, one hundred eleven".