6816947 has 8 divisors (see below), whose sum is σ = 7287840. Its totient is φ = 6360640.

The previous prime is 6816937. The next prime is 6816967. The reversal of 6816947 is 7496186.

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

It is a cyclic number.

It is not a de Polignac number, because 6816947 - 2¹⁰ = 6815923 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a Duffinian 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, 2672 + ... + 4557.

It is an arithmetic number, because the mean of its divisors is an integer number (910980).

Almost surely, 2^6816947 is an apocalyptic number.

6816947 is a deficient number, since it is larger than the sum of its proper divisors (470893).

6816947 is a wasteful number, since it uses less digits than its factorization.

6816947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7293.

The product of its digits is 72576, while the sum is 41.

The square root of 6816947 is about 2610.9283789488. The cubic root of 6816947 is about 189.6109027035.

The spelling of 6816947 in words is "six million, eight hundred sixteen thousand, nine hundred forty-seven".