2728001 has 8 divisors (see below), whose sum is σ = 2971200. Its totient is φ = 2494800.

The previous prime is 2727997. The next prime is 2728013. The reversal of 2728001 is 1008272.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2728001 - 2² = 2727997 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2728051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1925 + ... + 3026.

It is an arithmetic number, because the mean of its divisors is an integer number (371400).

2^2728001 is an apocalyptic number.

It is an amenable number.

2728001 is a deficient number, since it is larger than the sum of its proper divisors (243199).

2728001 is a wasteful number, since it uses less digits than its factorization.

2728001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4999.

The product of its (nonzero) digits is 224, while the sum is 20.

The square root of 2728001 is about 1651.6661284897. Note that the first 3 decimals coincide. The cubic root of 2728001 is about 139.7273776296.

The spelling of 2728001 in words is "two million, seven hundred twenty-eight thousand, one".