6724229 has 2 divisors, whose sum is σ = 6724230. Its totient is φ = 6724228.

The previous prime is 6724219. The next prime is 6724247. The reversal of 6724229 is 9224276.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6708100 + 16129 = 2590^2 + 127^2 .

It is a cyclic number.

It is not a de Polignac number, because 6724229 - 2²⁰ = 5675653 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is an Ulam number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 6724195 and 6724204.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6724219) 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 as a sum of consecutive naturals, namely, 3362114 + 3362115.

It is an arithmetic number, because the mean of its divisors is an integer number (3362115).

Almost surely, 2^6724229 is an apocalyptic number.

It is an amenable number.

6724229 is a deficient number, since it is larger than the sum of its proper divisors (1).

6724229 is an equidigital number, since it uses as much as digits as its factorization.

6724229 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12096, while the sum is 32.

The square root of 6724229 is about 2593.1118371563. Note that the first 3 decimals coincide. The cubic root of 6724229 is about 188.7473364827.

The spelling of 6724229 in words is "six million, seven hundred twenty-four thousand, two hundred twenty-nine".