2728798 has 4 divisors (see below), whose sum is σ = 4093200. Its totient is φ = 1364398.

The previous prime is 2728777. The next prime is 2728801. The reversal of 2728798 is 8978272.

It is a semiprime because it is the product of two primes.

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, 682198 + ... + 682201.

It is an arithmetic number, because the mean of its divisors is an integer number (1023300).

2^2728798 is an apocalyptic number.

2728798 is a deficient number, since it is larger than the sum of its proper divisors (1364402).

2728798 is a wasteful number, since it uses less digits than its factorization.

2728798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1364401.

The product of its digits is 112896, while the sum is 43.

The square root of 2728798 is about 1651.9073823916. The cubic root of 2728798 is about 139.7409836701.

The spelling of 2728798 in words is "two million, seven hundred twenty-eight thousand, seven hundred ninety-eight".