2728796887 has 2 divisors, whose sum is σ = 2728796888. Its totient is φ = 2728796886.

The previous prime is 2728796881. The next prime is 2728796897. The reversal of 2728796887 is 7886978272.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2728796887 - 2²³ = 2720408279 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2728796881) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1364398443 + 1364398444.

It is an arithmetic number, because the mean of its divisors is an integer number (1364398444).

Almost surely, 2^2728796887 is an apocalyptic number.

2728796887 is a deficient number, since it is larger than the sum of its proper divisors (1).

2728796887 is an equidigital number, since it uses as much as digits as its factorization.

2728796887 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 37933056, while the sum is 64.

The square root of 2728796887 is about 52237.8874668569. The cubic root of 2728796887 is about 1397.4096467133.

The spelling of 2728796887 in words is "two billion, seven hundred twenty-eight million, seven hundred ninety-six thousand, eight hundred eighty-seven".