6378198 has 8 divisors (see below), whose sum is σ = 12756408. Its totient is φ = 2126064.

The previous prime is 6378181. The next prime is 6378209. The reversal of 6378198 is 8918736.

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

6378198 is an admirable number.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 531511 + ... + 531522.

It is an arithmetic number, because the mean of its divisors is an integer number (1594551).

Almost surely, 2^6378198 is an apocalyptic number.

6378198 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

6378198 is a wasteful number, since it uses less digits than its factorization.

6378198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1063038.

The product of its digits is 72576, while the sum is 42.

The square root of 6378198 is about 2525.5094535559. The cubic root of 6378198 is about 185.4524886616.

The spelling of 6378198 in words is "six million, three hundred seventy-eight thousand, one hundred ninety-eight".