2728173 has 24 divisors (see below), whose sum is σ = 4310112. Its totient is φ = 1530144.

The previous prime is 2728171. The next prime is 2728199. The reversal of 2728173 is 3718272.

2728173 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2728173 - 2¹ = 2728171 is a prime.

2728173 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 2728173.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2728171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9711 + ... + 9987.

It is an arithmetic number, because the mean of its divisors is an integer number (179588).

2^2728173 is an apocalyptic number.

It is an amenable number.

2728173 is a deficient number, since it is larger than the sum of its proper divisors (1581939).

2728173 is a wasteful number, since it uses less digits than its factorization.

2728173 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 361 (or 354 counting only the distinct ones).

The product of its digits is 4704, while the sum is 30.

The square root of 2728173 is about 1651.7181963035. The cubic root of 2728173 is about 139.7303141637.

Subtracting 2728173 from its reverse (3718272), we obtain a palindrome (990099).

The spelling of 2728173 in words is "two million, seven hundred twenty-eight thousand, one hundred seventy-three".