2728203 has 4 divisors (see below), whose sum is σ = 3637608. Its totient is φ = 1818800.

The previous prime is 2728199. The next prime is 2728207. The reversal of 2728203 is 3028272.

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

It is an interprime number because it is at equal distance from previous prime (2728199) and next prime (2728207).

It is a cyclic number.

It is not a de Polignac number, because 2728203 - 2² = 2728199 is a prime.

It is a D-number.

2728203 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2728207) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 454698 + ... + 454703.

It is an arithmetic number, because the mean of its divisors is an integer number (909402).

2^2728203 is an apocalyptic number.

2728203 is a deficient number, since it is larger than the sum of its proper divisors (909405).

2728203 is an equidigital number, since it uses as much as digits as its factorization.

2728203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 909404.

The product of its (nonzero) digits is 1344, while the sum is 24.

The square root of 2728203 is about 1651.7272777308. The cubic root of 2728203 is about 139.7308263372.

The spelling of 2728203 in words is "two million, seven hundred twenty-eight thousand, two hundred three".