2720717 has 2 divisors, whose sum is σ = 2720718. Its totient is φ = 2720716.

The previous prime is 2720713. The next prime is 2720723. The reversal of 2720717 is 7170272.

2720717 is digitally balanced in base 2, 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., 2033476 + 687241 = 1426^2 + 829^2 .

It is a cyclic number.

It is not a de Polignac number, because 2720717 - 2² = 2720713 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2720713) 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, 1360358 + 1360359.

It is an arithmetic number, because the mean of its divisors is an integer number (1360359).

2^2720717 is an apocalyptic number.

It is an amenable number.

2720717 is a deficient number, since it is larger than the sum of its proper divisors (1).

2720717 is an equidigital number, since it uses as much as digits as its factorization.

2720717 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1372, while the sum is 26.

The square root of 2720717 is about 1649.4596084779. The cubic root of 2720717 is about 139.6029053618.

Adding to 2720717 its reverse (7170272), we get a palindrome (9890989).

The spelling of 2720717 in words is "two million, seven hundred twenty thousand, seven hundred seventeen".