6720089 has 2 divisors, whose sum is σ = 6720090. Its totient is φ = 6720088.

The previous prime is 6720059. The next prime is 6720143. The reversal of 6720089 is 9800276.

6720089 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., 5736025 + 984064 = 2395^2 + 992^2 .

It is a cyclic number.

It is not a de Polignac number, because 6720089 - 2¹² = 6715993 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (6720059) 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, 3360044 + 3360045.

It is an arithmetic number, because the mean of its divisors is an integer number (3360045).

Almost surely, 2^6720089 is an apocalyptic number.

It is an amenable number.

6720089 is a deficient number, since it is larger than the sum of its proper divisors (1).

6720089 is an equidigital number, since it uses as much as digits as its factorization.

6720089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6048, while the sum is 32.

The square root of 6720089 is about 2592.3134455540. The cubic root of 6720089 is about 188.7085922938.

The spelling of 6720089 in words is "six million, seven hundred twenty thousand, eighty-nine".