2728004717 has 2 divisors, whose sum is σ = 2728004718. Its totient is φ = 2728004716.

The previous prime is 2728004693. The next prime is 2728004731. The reversal of 2728004717 is 7174008272.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2685416041 + 42588676 = 51821^2 + 6526^2 .

It is a cyclic number.

It is not a de Polignac number, because 2728004717 - 2²⁴ = 2711227501 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2728004767) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1364002358 + 1364002359.

It is an arithmetic number, because the mean of its divisors is an integer number (1364002359).

Almost surely, 2^2728004717 is an apocalyptic number.

It is an amenable number.

2728004717 is a deficient number, since it is larger than the sum of its proper divisors (1).

2728004717 is an equidigital number, since it uses as much as digits as its factorization.

2728004717 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 43904, while the sum is 38.

The square root of 2728004717 is about 52230.3045845992. The cubic root of 2728004717 is about 1397.2744109077.

The spelling of 2728004717 in words is "two billion, seven hundred twenty-eight million, four thousand, seven hundred seventeen".