2728006717 has 4 divisors (see below), whose sum is σ = 2732330656. Its totient is φ = 2723682780.

The previous prime is 2728006703. The next prime is 2728006751. The reversal of 2728006717 is 7176008272.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2728006717 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2728006717.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2728004717) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2161023 + ... + 2162284.

It is an arithmetic number, because the mean of its divisors is an integer number (683082664).

Almost surely, 2^2728006717 is an apocalyptic number.

It is an amenable number.

2728006717 is a deficient number, since it is larger than the sum of its proper divisors (4323939).

2728006717 is an equidigital number, since it uses as much as digits as its factorization.

2728006717 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4323938.

The product of its (nonzero) digits is 65856, while the sum is 40.

The square root of 2728006717 is about 52230.3237305686. The cubic root of 2728006717 is about 1397.2747523719.

The spelling of 2728006717 in words is "two billion, seven hundred twenty-eight million, six thousand, seven hundred seventeen".