6682947 has 4 divisors (see below), whose sum is σ = 8910600. Its totient is φ = 4455296.

The previous prime is 6682943. The next prime is 6682957. The reversal of 6682947 is 7492866.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 6682947 - 2² = 6682943 is a prime.

It is a D-number.

6682947 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 6682899 and 6682908.

It is not an unprimeable number, because it can be changed into a prime (6682943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1113822 + ... + 1113827.

It is an arithmetic number, because the mean of its divisors is an integer number (2227650).

Almost surely, 2^6682947 is an apocalyptic number.

6682947 is a deficient number, since it is larger than the sum of its proper divisors (2227653).

6682947 is a wasteful number, since it uses less digits than its factorization.

6682947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2227652.

The product of its digits is 145152, while the sum is 42.

The square root of 6682947 is about 2585.1396480655. The cubic root of 6682947 is about 188.3602850370.

The spelling of 6682947 in words is "six million, six hundred eighty-two thousand, nine hundred forty-seven".