2728519 has 2 divisors, whose sum is σ = 2728520. Its totient is φ = 2728518.

The previous prime is 2728507. The next prime is 2728541. The reversal of 2728519 is 9158272.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2728519 - 2¹⁵ = 2695751 is a prime.

It is a super-2 number, since 2×2728519² = 14889631866722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2728549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1364259 + 1364260.

It is an arithmetic number, because the mean of its divisors is an integer number (1364260).

2^2728519 is an apocalyptic number.

2728519 is a deficient number, since it is larger than the sum of its proper divisors (1).

2728519 is an equidigital number, since it uses as much as digits as its factorization.

2728519 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10080, while the sum is 34.

The square root of 2728519 is about 1651.8229323992. The cubic root of 2728519 is about 139.7362210038.

The spelling of 2728519 in words is "two million, seven hundred twenty-eight thousand, five hundred nineteen".