6722947 has 12 divisors (see below), whose sum is σ = 8532216. Its totient is φ = 5238240.

The previous prime is 6722929. The next prime is 6722957. The reversal of 6722947 is 7492276.

It is a happy number.

It is not a de Polignac number, because 6722947 - 2⁷ = 6722819 is a prime.

It is a d-powerful number, because it can be written as 6⁶ + 7⁶ + 2¹⁷ + 2¹⁷ + 9⁶ + 4⁴ + 7⁸ .

It is not an unprimeable number, because it can be changed into a prime (6722957) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5698 + ... + 6775.

It is an arithmetic number, because the mean of its divisors is an integer number (711018).

Almost surely, 2^6722947 is an apocalyptic number.

6722947 is a deficient number, since it is larger than the sum of its proper divisors (1809269).

6722947 is a wasteful number, since it uses less digits than its factorization.

6722947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12498 (or 12491 counting only the distinct ones).

The product of its digits is 42336, while the sum is 37.

The square root of 6722947 is about 2592.8646320238. The cubic root of 6722947 is about 188.7353405863.

It can be divided in two parts, 67229 and 47, that added together give a palindrome (67276).

The spelling of 6722947 in words is "six million, seven hundred twenty-two thousand, nine hundred forty-seven".