6816542 has 16 divisors (see below), whose sum is σ = 10532592. Its totient is φ = 3307200.

The previous prime is 6816527. The next prime is 6816571. The reversal of 6816542 is 2456186.

It is a junction number, because it is equal to n+sod(n) for n = 6816499 and 6816508.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11042 + ... + 11642.

It is an arithmetic number, because the mean of its divisors is an integer number (658287).

Almost surely, 2^6816542 is an apocalyptic number.

6816542 is a deficient number, since it is larger than the sum of its proper divisors (3716050).

6816542 is a wasteful number, since it uses less digits than its factorization.

6816542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 763.

The product of its digits is 11520, while the sum is 32.

The square root of 6816542 is about 2610.8508191775. The cubic root of 6816542 is about 189.6071476532.

The spelling of 6816542 in words is "six million, eight hundred sixteen thousand, five hundred forty-two".