2722729 has 2 divisors, whose sum is σ = 2722730. Its totient is φ = 2722728.

The previous prime is 2722691. The next prime is 2722751. The reversal of 2722729 is 9272272.

2722729 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2418025 + 304704 = 1555^2 + 552^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2722729 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2722729.

It is not a weakly prime, because it can be changed into another prime (2722789) 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, 1361364 + 1361365.

It is an arithmetic number, because the mean of its divisors is an integer number (1361365).

2^2722729 is an apocalyptic number.

It is an amenable number.

2722729 is a deficient number, since it is larger than the sum of its proper divisors (1).

2722729 is an equidigital number, since it uses as much as digits as its factorization.

2722729 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7056, while the sum is 31.

The square root of 2722729 is about 1650.0693924802. The cubic root of 2722729 is about 139.6373095079.

The spelling of 2722729 in words is "two million, seven hundred twenty-two thousand, seven hundred twenty-nine".