6816534 has 8 divisors (see below), whose sum is σ = 13633080. Its totient is φ = 2272176.

The previous prime is 6816527. The next prime is 6816571. The reversal of 6816534 is 4356186.

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

6816534 is an admirable number.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 6816495 and 6816504.

It is a congruent number.

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, 568039 + ... + 568050.

It is an arithmetic number, because the mean of its divisors is an integer number (1704135).

Almost surely, 2^6816534 is an apocalyptic number.

6816534 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.

6816534 is a wasteful number, since it uses less digits than its factorization.

6816534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1136094.

The product of its digits is 17280, while the sum is 33.

The square root of 6816534 is about 2610.8492871095. The cubic root of 6816534 is about 189.6070734778.

The spelling of 6816534 in words is "six million, eight hundred sixteen thousand, five hundred thirty-four".