2728485 has 20 divisors (see below), whose sum is σ = 4891788. Its totient is φ = 1454976.

The previous prime is 2728471. The next prime is 2728499. The reversal of 2728485 is 5848272.

It is a happy number.

2728485 is nontrivially palindromic in base 11.

It is an interprime number because it is at equal distance from previous prime (2728471) and next prime (2728499).

It can be written as a sum of positive squares in 2 ways, for example, as 1185921 + 1542564 = 1089^2 + 1242^2 .

It is not a de Polignac number, because 2728485 - 2⁷ = 2728357 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 2964 + ... + 3773.

2^2728485 is an apocalyptic number.

It is an amenable number.

2728485 is a deficient number, since it is larger than the sum of its proper divisors (2163303).

2728485 is an equidigital number, since it uses as much as digits as its factorization.

2728485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6754 (or 6745 counting only the distinct ones).

The product of its digits is 35840, while the sum is 36.

The square root of 2728485 is about 1651.8126407072. The cubic root of 2728485 is about 139.7356405850.

The spelling of 2728485 in words is "two million, seven hundred twenty-eight thousand, four hundred eighty-five".