2538791 has 2 divisors, whose sum is σ = 2538792. Its totient is φ = 2538790.

The previous prime is 2538787. The next prime is 2538803. The reversal of 2538791 is 1978352.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2538791 - 2² = 2538787 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2538751) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1269395 + 1269396.

It is an arithmetic number, because the mean of its divisors is an integer number (1269396).

2^2538791 is an apocalyptic number.

2538791 is a deficient number, since it is larger than the sum of its proper divisors (1).

2538791 is an equidigital number, since it uses as much as digits as its factorization.

2538791 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15120, while the sum is 35.

The square root of 2538791 is about 1593.3584028711. The cubic root of 2538791 is about 136.4192476343.

The spelling of 2538791 in words is "two million, five hundred thirty-eight thousand, seven hundred ninety-one".