2728254889 has 2 divisors, whose sum is σ = 2728254890. Its totient is φ = 2728254888.

The previous prime is 2728254803. The next prime is 2728254899. The reversal of 2728254889 is 9884528272.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2468400489 + 259854400 = 49683^2 + 16120^2 .

It is a cyclic number.

It is not a de Polignac number, because 2728254889 - 2¹¹ = 2728252841 is a prime.

It is not a weakly prime, because it can be changed into another prime (2728254899) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1364127444 + 1364127445.

It is an arithmetic number, because the mean of its divisors is an integer number (1364127445).

Almost surely, 2^2728254889 is an apocalyptic number.

It is an amenable number.

2728254889 is a deficient number, since it is larger than the sum of its proper divisors (1).

2728254889 is an equidigital number, since it uses as much as digits as its factorization.

2728254889 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5160960, while the sum is 55.

The square root of 2728254889 is about 52232.6994228711. The cubic root of 2728254889 is about 1397.3171220080.

The spelling of 2728254889 in words is "two billion, seven hundred twenty-eight million, two hundred fifty-four thousand, eight hundred eighty-nine".