2728366 has 4 divisors (see below), whose sum is σ = 4092552. Its totient is φ = 1364182.

The previous prime is 2728357. The next prime is 2728373. The reversal of 2728366 is 6638272.

2728366 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a d-powerful number, because it can be written as 2¹⁹ + 7² + 2¹⁹ + 8 + 3⁴ + 6² + 6⁸ .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 682090 + ... + 682093.

It is an arithmetic number, because the mean of its divisors is an integer number (1023138).

2^2728366 is an apocalyptic number.

2728366 is a deficient number, since it is larger than the sum of its proper divisors (1364186).

2728366 is a wasteful number, since it uses less digits than its factorization.

2728366 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1364185.

The product of its digits is 24192, while the sum is 34.

The square root of 2728366 is about 1651.7766192800. The cubic root of 2728366 is about 139.7336090812.

The spelling of 2728366 in words is "two million, seven hundred twenty-eight thousand, three hundred sixty-six".