2728859 has 6 divisors (see below), whose sum is σ = 3174444. Its totient is φ = 2338980.

The previous prime is 2728853. The next prime is 2728877. The reversal of 2728859 is 9588272.

It is a happy number.

It is not a de Polignac number, because 2728859 - 2⁸ = 2728603 is a prime.

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 5 ways as a sum of consecutive naturals, for example, 27797 + ... + 27894.

It is an arithmetic number, because the mean of its divisors is an integer number (529074).

2^2728859 is an apocalyptic number.

2728859 is a deficient number, since it is larger than the sum of its proper divisors (445585).

2728859 is an equidigital number, since it uses as much as digits as its factorization.

2728859 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55705 (or 55698 counting only the distinct ones).

The product of its digits is 80640, while the sum is 41.

The square root of 2728859 is about 1651.9258457933. The cubic root of 2728859 is about 139.7420249267.

The spelling of 2728859 in words is "two million, seven hundred twenty-eight thousand, eight hundred fifty-nine".