2728712 has 24 divisors (see below), whose sum is σ = 5952510. Its totient is φ = 1169280.

The previous prime is 2728711. The next prime is 2728741. The reversal of 2728712 is 2178272.

It can be written as a sum of positive squares in only one way, i.e., 1999396 + 729316 = 1414^2 + 854^2 .

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (2728711) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3089 + ... + 3872.

2^2728712 is an apocalyptic number.

It is an amenable number.

2728712 is an abundant number, since it is smaller than the sum of its proper divisors (3223798).

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

2728712 is a wasteful number, since it uses less digits than its factorization.

2728712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6981 (or 6970 counting only the distinct ones).

The product of its digits is 3136, while the sum is 29.

The square root of 2728712 is about 1651.8813516715. The cubic root of 2728712 is about 139.7395156427.

The spelling of 2728712 in words is "two million, seven hundred twenty-eight thousand, seven hundred twelve".