2728715 has 8 divisors (see below), whose sum is σ = 3572208. Its totient is φ = 1984480.

The previous prime is 2728711. The next prime is 2728741. The reversal of 2728715 is 5178272.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2728715 - 2² = 2728711 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2728711) 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, 24752 + ... + 24861.

It is an arithmetic number, because the mean of its divisors is an integer number (446526).

2^2728715 is an apocalyptic number.

2728715 is a deficient number, since it is larger than the sum of its proper divisors (843493).

2728715 is a wasteful number, since it uses less digits than its factorization.

2728715 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49629.

The product of its digits is 7840, while the sum is 32.

The square root of 2728715 is about 1651.8822597268. The cubic root of 2728715 is about 139.7395668535.

It can be divided in two parts, 2728 and 715, that added together give a palindrome (3443).

The spelling of 2728715 in words is "two million, seven hundred twenty-eight thousand, seven hundred fifteen".