6428219 has 8 divisors (see below), whose sum is σ = 7368960. Its totient is φ = 5493096.

The previous prime is 6428207. The next prime is 6428263. The reversal of 6428219 is 9128246.

6428219 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 6428219 - 2⁸ = 6427963 is a prime.

It is a super-2 number, since 2×6428219² = 82643999023922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6428419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1442 + ... + 3864.

It is an arithmetic number, because the mean of its divisors is an integer number (921120).

Almost surely, 2^6428219 is an apocalyptic number.

6428219 is a deficient number, since it is larger than the sum of its proper divisors (940741).

6428219 is a wasteful number, since it uses less digits than its factorization.

6428219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2809.

The product of its digits is 6912, while the sum is 32.

The square root of 6428219 is about 2535.3932633814. The cubic root of 6428219 is about 185.9360303393.

The spelling of 6428219 in words is "six million, four hundred twenty-eight thousand, two hundred nineteen".