6816997 has 8 divisors (see below), whose sum is σ = 7470720. Its totient is φ = 6168960.

The previous prime is 6816973. The next prime is 6817007. The reversal of 6816997 is 7996186.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6816997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6816907) 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, 1333 + ... + 3925.

It is an arithmetic number, because the mean of its divisors is an integer number (933840).

Almost surely, 2^6816997 is an apocalyptic number.

It is an amenable number.

6816997 is a deficient number, since it is larger than the sum of its proper divisors (653723).

6816997 is a wasteful number, since it uses less digits than its factorization.

6816997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2843.

The product of its digits is 163296, while the sum is 46.

The square root of 6816997 is about 2610.9379540694. The cubic root of 6816997 is about 189.6113662796.

The spelling of 6816997 in words is "six million, eight hundred sixteen thousand, nine hundred ninety-seven".