2728776 has 32 divisors (see below), whose sum is σ = 6927840. Its totient is φ = 895488.

The previous prime is 2728771. The next prime is 2728777. The reversal of 2728776 is 6778272.

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 7 ways as a sum of consecutive naturals, for example, 760 + ... + 2456.

It is an arithmetic number, because the mean of its divisors is an integer number (216495).

2^2728776 is an apocalyptic number.

It is an amenable number.

2728776 is an abundant number, since it is smaller than the sum of its proper divisors (4199064).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2728776 is a wasteful number, since it uses less digits than its factorization.

2728776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1773 (or 1769 counting only the distinct ones).

The product of its digits is 65856, while the sum is 39.

The square root of 2728776 is about 1651.9007234092. The cubic root of 2728776 is about 139.7406081312.

The spelling of 2728776 in words is "two million, seven hundred twenty-eight thousand, seven hundred seventy-six".