2728071 has 6 divisors (see below), whose sum is σ = 3940560. Its totient is φ = 1818708.

The previous prime is 2728067. The next prime is 2728073. The reversal of 2728071 is 1708272.

It is not a de Polignac number, because 2728071 - 2² = 2728067 is a prime.

2728071 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2728073) 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, 151551 + ... + 151568.

It is an arithmetic number, because the mean of its divisors is an integer number (656760).

2^2728071 is an apocalyptic number.

2728071 is a deficient number, since it is larger than the sum of its proper divisors (1212489).

2728071 is a wasteful number, since it uses less digits than its factorization.

2728071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 303125 (or 303122 counting only the distinct ones).

The product of its (nonzero) digits is 1568, while the sum is 27.

The square root of 2728071 is about 1651.6873190771. The cubic root of 2728071 is about 139.7285727456.

The spelling of 2728071 in words is "two million, seven hundred twenty-eight thousand, seventy-one".