6773729 has 2 divisors, whose sum is σ = 6773730. Its totient is φ = 6773728.

The previous prime is 6773681. The next prime is 6773783. The reversal of 6773729 is 9273776.

6773729 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5650129 + 1123600 = 2377^2 + 1060^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6773729 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (6773629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3386864 + 3386865.

It is an arithmetic number, because the mean of its divisors is an integer number (3386865).

Almost surely, 2^6773729 is an apocalyptic number.

It is an amenable number.

6773729 is a deficient number, since it is larger than the sum of its proper divisors (1).

6773729 is an equidigital number, since it uses as much as digits as its factorization.

6773729 is an evil number, because the sum of its binary digits is even.

The product of its digits is 111132, while the sum is 41.

The square root of 6773729 is about 2602.6388531642. The cubic root of 6773729 is about 189.2093552758.

The spelling of 6773729 in words is "six million, seven hundred seventy-three thousand, seven hundred twenty-nine".