2728587 has 4 divisors (see below), whose sum is σ = 3638120. Its totient is φ = 1819056.

The previous prime is 2728577. The next prime is 2728603. The reversal of 2728587 is 7858272.

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

It is not a de Polignac number, because 2728587 - 2⁸ = 2728331 is a prime.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2728507) 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, 454762 + ... + 454767.

It is an arithmetic number, because the mean of its divisors is an integer number (909530).

2^2728587 is an apocalyptic number.

2728587 is a deficient number, since it is larger than the sum of its proper divisors (909533).

2728587 is an equidigital number, since it uses as much as digits as its factorization.

2728587 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 909532.

The product of its digits is 62720, while the sum is 39.

The square root of 2728587 is about 1651.8435155910. The cubic root of 2728587 is about 139.7373818269.

It can be divided in two parts, 27285 and 87, that added together give a palindrome (27372).

The spelling of 2728587 in words is "two million, seven hundred twenty-eight thousand, five hundred eighty-seven".