2728443733 has 2 divisors, whose sum is σ = 2728443734. Its totient is φ = 2728443732.

The previous prime is 2728443709. The next prime is 2728443761. The reversal of 2728443733 is 3373448272.

2728443733 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., 2727137284 + 1306449 = 52222^2 + 1143^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2728443733 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2728443733.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2728443433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1364221866 + 1364221867.

It is an arithmetic number, because the mean of its divisors is an integer number (1364221867).

Almost surely, 2^2728443733 is an apocalyptic number.

It is an amenable number.

2728443733 is a deficient number, since it is larger than the sum of its proper divisors (1).

2728443733 is an equidigital number, since it uses as much as digits as its factorization.

2728443733 is an evil number, because the sum of its binary digits is even.

The product of its digits is 677376, while the sum is 43.

The square root of 2728443733 is about 52234.5071097641. The cubic root of 2728443733 is about 1397.3493610371.

It can be divided in two parts, 27284 and 43733, that added together give a palindrome (71017).

The spelling of 2728443733 in words is "two billion, seven hundred twenty-eight million, four hundred forty-three thousand, seven hundred thirty-three".