2728777 has 2 divisors, whose sum is σ = 2728778. Its totient is φ = 2728776.

The previous prime is 2728771. The next prime is 2728801. The reversal of 2728777 is 7778272.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1449616 + 1279161 = 1204^2 + 1131^2 .

It is a cyclic number.

It is not a de Polignac number, because 2728777 - 2³ = 2728769 is a prime.

It is not a weakly prime, because it can be changed into another prime (2728771) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1364388 + 1364389.

It is an arithmetic number, because the mean of its divisors is an integer number (1364389).

2^2728777 is an apocalyptic number.

It is an amenable number.

2728777 is a deficient number, since it is larger than the sum of its proper divisors (1).

2728777 is an equidigital number, since it uses as much as digits as its factorization.

2728777 is an evil number, because the sum of its binary digits is even.

The product of its digits is 76832, while the sum is 40.

The square root of 2728777 is about 1651.9010260908. The cubic root of 2728777 is about 139.7406252012.

The spelling of 2728777 in words is "two million, seven hundred twenty-eight thousand, seven hundred seventy-seven".