2728896 has 56 divisors (see below), whose sum is σ = 7370064. Its totient is φ = 890880.

The previous prime is 2728889. The next prime is 2728907. The reversal of 2728896 is 6988272.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11596 + ... + 11828.

2^2728896 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2728896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3685032).

2728896 is an abundant number, since it is smaller than the sum of its proper divisors (4641168).

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

2728896 is a wasteful number, since it uses less digits than its factorization.

2728896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 309 (or 299 counting only the distinct ones).

The product of its digits is 96768, while the sum is 42.

The square root of 2728896 is about 1651.9370448053. The cubic root of 2728896 is about 139.7426565010.

The spelling of 2728896 in words is "two million, seven hundred twenty-eight thousand, eight hundred ninety-six".