2728855 has 8 divisors (see below), whose sum is σ = 3294000. Its totient is φ = 2170176.

The previous prime is 2728853. The next prime is 2728877. The reversal of 2728855 is 5588272.

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 2728855 - 2¹ = 2728853 is a prime.

It is a super-2 number, since 2×2728855² = 14893299222050, which contains 22 as substring.

2728855 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2728853) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 630 + ... + 2419.

It is an arithmetic number, because the mean of its divisors is an integer number (411750).

2^2728855 is an apocalyptic number.

2728855 is a deficient number, since it is larger than the sum of its proper divisors (565145).

2728855 is a wasteful number, since it uses less digits than its factorization.

2728855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3233.

The product of its digits is 44800, while the sum is 37.

The square root of 2728855 is about 1651.9246350848. The cubic root of 2728855 is about 139.7419566481.

It can be divided in two parts, 27 and 28855, that added together give a palindrome (28882).

The spelling of 2728855 in words is "two million, seven hundred twenty-eight thousand, eight hundred fifty-five".