2728912 has 10 divisors (see below), whose sum is σ = 5287298. Its totient is φ = 1364448.

The previous prime is 2728907. The next prime is 2728931. The reversal of 2728912 is 2198272.

It can be written as a sum of positive squares in only one way, i.e., 1527696 + 1201216 = 1236^2 + 1096^2 .

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 85263 + ... + 85294.

2^2728912 is an apocalyptic number.

It is an amenable number.

2728912 is a deficient number, since it is larger than the sum of its proper divisors (2558386).

2728912 is a wasteful number, since it uses less digits than its factorization.

2728912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170565 (or 170559 counting only the distinct ones).

The product of its digits is 4032, while the sum is 31.

The square root of 2728912 is about 1651.9418875977. The cubic root of 2728912 is about 139.7429296124.

The spelling of 2728912 in words is "two million, seven hundred twenty-eight thousand, nine hundred twelve".