6397428 has 48 divisors (see below), whose sum is σ = 15498560. Its totient is φ = 2052864.

The previous prime is 6397421. The next prime is 6397451. The reversal of 6397428 is 8247936.

6397428 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6397421) 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 15 ways as a sum of consecutive naturals, for example, 58638 + ... + 58746.

Almost surely, 2^6397428 is an apocalyptic number.

It is an amenable number.

6397428 is an abundant number, since it is smaller than the sum of its proper divisors (9101132).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6397428 is a wasteful number, since it uses less digits than its factorization.

6397428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 256 (or 254 counting only the distinct ones).

The product of its digits is 72576, while the sum is 39.

The square root of 6397428 is about 2529.3137409187. The cubic root of 6397428 is about 185.6386788319.

The spelling of 6397428 in words is "six million, three hundred ninety-seven thousand, four hundred twenty-eight".