2728773 has 12 divisors (see below), whose sum is σ = 4026048. Its totient is φ = 1780200.

The previous prime is 2728771. The next prime is 2728777. The reversal of 2728773 is 3778272.

It is not a de Polignac number, because 2728773 - 2¹ = 2728771 is a prime.

It is a Curzon number.

2728773 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2728771) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2803 + ... + 3648.

It is an arithmetic number, because the mean of its divisors is an integer number (335504).

2^2728773 is an apocalyptic number.

It is an amenable number.

2728773 is a deficient number, since it is larger than the sum of its proper divisors (1297275).

2728773 is a wasteful number, since it uses less digits than its factorization.

2728773 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6504 (or 6501 counting only the distinct ones).

The product of its digits is 32928, while the sum is 36.

The square root of 2728773 is about 1651.8998153641. The cubic root of 2728773 is about 139.7405569212.

It can be divided in two parts, 272 and 8773, that added together give a triangular number (9045 = T₁₃₄).

The spelling of 2728773 in words is "two million, seven hundred twenty-eight thousand, seven hundred seventy-three".