6816742 has 16 divisors (see below), whose sum is σ = 10659600. Its totient is φ = 3266560.

The previous prime is 6816737. The next prime is 6816743. The reversal of 6816742 is 2476186.

It is a junction number, because it is equal to n+sod(n) for n = 6816698 and 6816707.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6816743) 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, 4134 + ... + 5542.

It is an arithmetic number, because the mean of its divisors is an integer number (666225).

Almost surely, 2^6816742 is an apocalyptic number.

6816742 is a deficient number, since it is larger than the sum of its proper divisors (3842858).

6816742 is a wasteful number, since it uses less digits than its factorization.

6816742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1511.

The product of its digits is 16128, while the sum is 34.

The square root of 6816742 is about 2610.8891205871. The cubic root of 6816742 is about 189.6090020176.

The spelling of 6816742 in words is "six million, eight hundred sixteen thousand, seven hundred forty-two".