6819198 has 16 divisors (see below), whose sum is σ = 13956096. Its totient is φ = 2220120.

The previous prime is 6819191. The next prime is 6819199. The reversal of 6819198 is 8919186.

6819198 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×6819198² = 93002922726408, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6819191) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12958 + ... + 13473.

It is an arithmetic number, because the mean of its divisors is an integer number (872256).

Almost surely, 2^6819198 is an apocalyptic number.

6819198 is an abundant number, since it is smaller than the sum of its proper divisors (7136898).

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

6819198 is a wasteful number, since it uses less digits than its factorization.

6819198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26479.

The product of its digits is 31104, while the sum is 42.

The square root of 6819198 is about 2611.3594160896. The cubic root of 6819198 is about 189.6317706556.

The spelling of 6819198 in words is "six million, eight hundred nineteen thousand, one hundred ninety-eight".