6819216 has 20 divisors (see below), whose sum is σ = 17616432. Its totient is φ = 2273056.

The previous prime is 6819209. The next prime is 6819221. The reversal of 6819216 is 6129186.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70986 + ... + 71081.

Almost surely, 2^6819216 is an apocalyptic number.

It is an amenable number.

6819216 is an abundant number, since it is smaller than the sum of its proper divisors (10797216).

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

6819216 is a wasteful number, since it uses less digits than its factorization.

6819216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142078 (or 142072 counting only the distinct ones).

The product of its digits is 5184, while the sum is 33.

The square root of 6819216 is about 2611.3628625681. The cubic root of 6819216 is about 189.6319375066.

The spelling of 6819216 in words is "six million, eight hundred nineteen thousand, two hundred sixteen".