6720011 has 2 divisors, whose sum is σ = 6720012. Its totient is φ = 6720010.

The previous prime is 6719989. The next prime is 6720047. The reversal of 6720011 is 1100276.

It is a happy number.

6720011 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 is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6720011 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (6720811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3360005 + 3360006.

It is an arithmetic number, because the mean of its divisors is an integer number (3360006).

Almost surely, 2^6720011 is an apocalyptic number.

6720011 is a deficient number, since it is larger than the sum of its proper divisors (1).

6720011 is an equidigital number, since it uses as much as digits as its factorization.

6720011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 84, while the sum is 17.

The square root of 6720011 is about 2592.2984010333. The cubic root of 6720011 is about 188.7078621781.

Adding to 6720011 its reverse (1100276), we get a palindrome (7820287).

The spelling of 6720011 in words is "six million, seven hundred twenty thousand, eleven".