6816825 has 24 divisors (see below), whose sum is σ = 12524000. Its totient is φ = 3635280.

The previous prime is 6816787. The next prime is 6816829. The reversal of 6816825 is 5286186.

It is a happy number.

6816825 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 6816825 - 2¹⁴ = 6800441 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6816825.

It is not an unprimeable number, because it can be changed into a prime (6816829) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4375 + ... + 5724.

Almost surely, 2^6816825 is an apocalyptic number.

It is an amenable number.

6816825 is a deficient number, since it is larger than the sum of its proper divisors (5707175).

6816825 is a wasteful number, since it uses less digits than its factorization.

6816825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10118 (or 10107 counting only the distinct ones).

The product of its digits is 23040, while the sum is 36.

The square root of 6816825 is about 2610.9050155071. The cubic root of 6816825 is about 189.6097715682.

The spelling of 6816825 in words is "six million, eight hundred sixteen thousand, eight hundred twenty-five".