2808901 has 2 divisors, whose sum is σ = 2808902. Its totient is φ = 2808900.

The previous prime is 2808881. The next prime is 2808917. The reversal of 2808901 is 1098082.

2808901 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1758276 + 1050625 = 1326^2 + 1025^2 .

It is a cyclic number.

It is not a de Polignac number, because 2808901 - 2¹³ = 2800709 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2808901.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2808101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1404450 + 1404451.

It is an arithmetic number, because the mean of its divisors is an integer number (1404451).

2^2808901 is an apocalyptic number.

It is an amenable number.

2808901 is a deficient number, since it is larger than the sum of its proper divisors (1).

2808901 is an equidigital number, since it uses as much as digits as its factorization.

2808901 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152, while the sum is 28.

The square root of 2808901 is about 1675.9776251490. The cubic root of 2808901 is about 141.0951690553.

The spelling of 2808901 in words is "two million, eight hundred eight thousand, nine hundred one".