2723789 has 2 divisors, whose sum is σ = 2723790. Its totient is φ = 2723788.

The previous prime is 2723779. The next prime is 2723797. The reversal of 2723789 is 9873272.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2301289 + 422500 = 1517^2 + 650^2 .

It is a cyclic number.

It is not a de Polignac number, because 2723789 - 2²⁰ = 1675213 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2723719) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1361894 + 1361895.

It is an arithmetic number, because the mean of its divisors is an integer number (1361895).

2^2723789 is an apocalyptic number.

It is an amenable number.

2723789 is a deficient number, since it is larger than the sum of its proper divisors (1).

2723789 is an equidigital number, since it uses as much as digits as its factorization.

2723789 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 42336, while the sum is 38.

The square root of 2723789 is about 1650.3905598373. The cubic root of 2723789 is about 139.6554281362.

The spelling of 2723789 in words is "two million, seven hundred twenty-three thousand, seven hundred eighty-nine".