2788297 has 2 divisors, whose sum is σ = 2788298. Its totient is φ = 2788296.

The previous prime is 2788273. The next prime is 2788301. The reversal of 2788297 is 7928872.

2788297 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., 2547216 + 241081 = 1596^2 + 491^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2788297 is a prime.

2788297 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (2788217) 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, 1394148 + 1394149.

It is an arithmetic number, because the mean of its divisors is an integer number (1394149).

2^2788297 is an apocalyptic number.

It is an amenable number.

2788297 is a deficient number, since it is larger than the sum of its proper divisors (1).

2788297 is an equidigital number, since it uses as much as digits as its factorization.

2788297 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 112896, while the sum is 43.

The square root of 2788297 is about 1669.8194513180. The cubic root of 2788297 is about 140.7493324762.

The spelling of 2788297 in words is "two million, seven hundred eighty-eight thousand, two hundred ninety-seven".