2536643 has 2 divisors, whose sum is σ = 2536644. Its totient is φ = 2536642.

The previous prime is 2536631. The next prime is 2536657. The reversal of 2536643 is 3466352.

2536643 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2536643 - 2⁶ = 2536579 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a d-powerful number, because it can be written as 2²¹ + 5³ + 3 + 6² + 6² + 4⁹ + 3¹¹ .

It is not a weakly prime, because it can be changed into another prime (2536603) 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, 1268321 + 1268322.

It is an arithmetic number, because the mean of its divisors is an integer number (1268322).

2^2536643 is an apocalyptic number.

2536643 is a deficient number, since it is larger than the sum of its proper divisors (1).

2536643 is an equidigital number, since it uses as much as digits as its factorization.

2536643 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12960, while the sum is 29.

The square root of 2536643 is about 1592.6842122656. The cubic root of 2536643 is about 136.3807632764.

The spelling of 2536643 in words is "two million, five hundred thirty-six thousand, six hundred forty-three".