2728227 has 4 divisors (see below), whose sum is σ = 3637640. Its totient is φ = 1818816.

The previous prime is 2728207. The next prime is 2728241. The reversal of 2728227 is 7228272.

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

It is not a de Polignac number, because 2728227 - 2⁶ = 2728163 is a prime.

It is a D-number.

It is a Duffinian number.

2728227 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 2728194 and 2728203.

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, 454702 + ... + 454707.

It is an arithmetic number, because the mean of its divisors is an integer number (909410).

2^2728227 is an apocalyptic number.

2728227 is a deficient number, since it is larger than the sum of its proper divisors (909413).

2728227 is an equidigital number, since it uses as much as digits as its factorization.

2728227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 909412.

The product of its digits is 6272, while the sum is 30.

The square root of 2728227 is about 1651.7345428367. The cubic root of 2728227 is about 139.7312360734.

It can be divided in two parts, 27 and 28227, that multiplied together give a square (762129 = 873²).

The spelling of 2728227 in words is "two million, seven hundred twenty-eight thousand, two hundred twenty-seven".