2547791 has 2 divisors, whose sum is σ = 2547792. Its totient is φ = 2547790.

The previous prime is 2547761. The next prime is 2547817. The reversal of 2547791 is 1977452.

2547791 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 is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2547791 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2547761) by changing a digit.

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

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1273895 + 1273896.

It is an arithmetic number, because the mean of its divisors is an integer number (1273896).

2^2547791 is an apocalyptic number.

2547791 is a deficient number, since it is larger than the sum of its proper divisors (1).

2547791 is an equidigital number, since it uses as much as digits as its factorization.

2547791 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17640, while the sum is 35.

The square root of 2547791 is about 1596.1801276798. The cubic root of 2547791 is about 136.5802593472.

The spelling of 2547791 in words is "two million, five hundred forty-seven thousand, seven hundred ninety-one".