2728847 has 4 divisors (see below), whose sum is σ = 2976936. Its totient is φ = 2480760.

The previous prime is 2728841. The next prime is 2728853. The reversal of 2728847 is 7488272.

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 (2728841) and next prime (2728853).

It is a cyclic number.

It is not a de Polignac number, because 2728847 - 2¹⁸ = 2466703 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2728847.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2728841) 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, 124028 + ... + 124049.

It is an arithmetic number, because the mean of its divisors is an integer number (744234).

2^2728847 is an apocalyptic number.

2728847 is a deficient number, since it is larger than the sum of its proper divisors (248089).

2728847 is a wasteful number, since it uses less digits than its factorization.

2728847 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248088.

The product of its digits is 50176, while the sum is 38.

The square root of 2728847 is about 1651.9222136650. The cubic root of 2728847 is about 139.7418200906.

It can be divided in two parts, 272 and 8847, that added together give a palindrome (9119).

The spelling of 2728847 in words is "two million, seven hundred twenty-eight thousand, eight hundred forty-seven".