2728763 has 2 divisors, whose sum is σ = 2728764. Its totient is φ = 2728762.

The previous prime is 2728753. The next prime is 2728769. The reversal of 2728763 is 3678272.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2728763 - 2⁸ = 2728507 is a prime.

It is a super-2 number, since 2×2728763² = 14892295020338, which contains 22 as substring.

It is a d-powerful number, because it can be written as 2¹⁹ + 7 + 2¹⁹ + 8³ + 7² + 6⁸ + 3 .

It is equal to p₁₉₈₅₇₅ and since 2728763 and 198575 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (2728769) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1364381 + 1364382.

It is an arithmetic number, because the mean of its divisors is an integer number (1364382).

2^2728763 is an apocalyptic number.

2728763 is a deficient number, since it is larger than the sum of its proper divisors (1).

2728763 is an equidigital number, since it uses as much as digits as its factorization.

2728763 is an evil number, because the sum of its binary digits is even.

The product of its digits is 28224, while the sum is 35.

The square root of 2728763 is about 1651.8967885434. The cubic root of 2728763 is about 139.7403862208.

The spelling of 2728763 in words is "two million, seven hundred twenty-eight thousand, seven hundred sixty-three".