2543797 has 2 divisors, whose sum is σ = 2543798. Its totient is φ = 2543796.

The previous prime is 2543771. The next prime is 2543809. The reversal of 2543797 is 7973452.

2543797 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., 2414916 + 128881 = 1554^2 + 359^2 .

It is a cyclic number.

It is not a de Polignac number, because 2543797 - 2¹⁵ = 2511029 is a prime.

It is a Chen prime.

It is a d-powerful number, because it can be written as 2¹⁹ + 5⁹ + 4⁸ + 3⁴ + 7³ + 9² + 7³ .

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2543707) 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, 1271898 + 1271899.

It is an arithmetic number, because the mean of its divisors is an integer number (1271899).

2^2543797 is an apocalyptic number.

It is an amenable number.

2543797 is a deficient number, since it is larger than the sum of its proper divisors (1).

2543797 is an equidigital number, since it uses as much as digits as its factorization.

2543797 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 52920, while the sum is 37.

The square root of 2543797 is about 1594.9285250443. The cubic root of 2543797 is about 136.5088528028.

The spelling of 2543797 in words is "two million, five hundred forty-three thousand, seven hundred ninety-seven".