2808728723 has 2 divisors, whose sum is σ = 2808728724. Its totient is φ = 2808728722.

The previous prime is 2808728683. The next prime is 2808728737. The reversal of 2808728723 is 3278278082.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2808728723 - 2¹² = 2808724627 is a prime.

It is not a weakly prime, because it can be changed into another prime (2808721723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1404364361 + 1404364362.

It is an arithmetic number, because the mean of its divisors is an integer number (1404364362).

Almost surely, 2^2808728723 is an apocalyptic number.

2808728723 is a deficient number, since it is larger than the sum of its proper divisors (1).

2808728723 is an equidigital number, since it uses as much as digits as its factorization.

2808728723 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 602112, while the sum is 47.

The square root of 2808728723 is about 52997.4407212273. The cubic root of 2808728723 is about 1410.9228442182.

The spelling of 2808728723 in words is "two billion, eight hundred eight million, seven hundred twenty-eight thousand, seven hundred twenty-three".