6397927 has 16 divisors (see below), whose sum is σ = 7096320. Its totient is φ = 5745600.

The previous prime is 6397921. The next prime is 6397949. The reversal of 6397927 is 7297936.

It is a de Polignac number, because none of the positive numbers 2^k-6397927 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a d-powerful number, because it can be written as 6⁶ + 3 + 9³ + 7⁴ + 9⁵ + 2¹⁹ + 7⁸ .

It is a Duffinian number.

Its product of digits (142884) is a multiple of the sum of its prime divisors (294).

6397927 is a lucky number.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6397921) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33402 + ... + 33592.

It is an arithmetic number, because the mean of its divisors is an integer number (443520).

Almost surely, 2^6397927 is an apocalyptic number.

6397927 is a deficient number, since it is larger than the sum of its proper divisors (698393).

6397927 is a wasteful number, since it uses less digits than its factorization.

6397927 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 294.

The product of its digits is 142884, while the sum is 43.

The square root of 6397927 is about 2529.4123823529. The cubic root of 6397927 is about 185.6435053180.

Subtracting 6397927 from its reverse (7297936), we obtain a palindrome (900009).

The spelling of 6397927 in words is "six million, three hundred ninety-seven thousand, nine hundred twenty-seven".