2720723 has 2 divisors, whose sum is σ = 2720724. Its totient is φ = 2720722.

The previous prime is 2720717. The next prime is 2720737. The reversal of 2720723 is 3270272.

2720723 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 is a cyclic number.

It is not a de Polignac number, because 2720723 - 2¹⁰ = 2719699 is a prime.

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, 1360361 + 1360362.

It is an arithmetic number, because the mean of its divisors is an integer number (1360362).

2^2720723 is an apocalyptic number.

2720723 is a deficient number, since it is larger than the sum of its proper divisors (1).

2720723 is an equidigital number, since it uses as much as digits as its factorization.

2720723 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1176, while the sum is 23.

The square root of 2720723 is about 1649.4614272544. The cubic root of 2720723 is about 139.6030079838.

Adding to 2720723 its reverse (3270272), we get a palindrome (5990995).

It can be divided in two parts, 2720 and 723, that added together give a palindrome (3443).

The spelling of 2720723 in words is "two million, seven hundred twenty thousand, seven hundred twenty-three".