6428375 has 8 divisors (see below), whose sum is σ = 8022768. Its totient is φ = 5142600.

The previous prime is 6428369. The next prime is 6428393. The reversal of 6428375 is 5738246.

It is a happy number.

6428375 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 6428375 - 2⁶ = 6428311 is a prime.

It is a d-powerful number, because it can be written as 6⁷ + 4¹¹ + 2⁷ + 8³ + 3³ + 7³ + 5⁹ .

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25589 + ... + 25838.

It is an arithmetic number, because the mean of its divisors is an integer number (1002846).

Almost surely, 2^6428375 is an apocalyptic number.

6428375 is a deficient number, since it is larger than the sum of its proper divisors (1594393).

6428375 is an equidigital number, since it uses as much as digits as its factorization.

6428375 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51442 (or 51432 counting only the distinct ones).

The product of its digits is 40320, while the sum is 35.

The square root of 6428375 is about 2535.4240276530. The cubic root of 6428375 is about 185.9375344255.

The spelling of 6428375 in words is "six million, four hundred twenty-eight thousand, three hundred seventy-five".