3631543 has 2 divisors, whose sum is σ = 3631544. Its totient is φ = 3631542.

The previous prime is 3631541. The next prime is 3631561. The reversal of 3631543 is 3451363.

It is a weak prime.

It is an emirp because it is prime and its reverse (3451363) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3631543 - 2¹ = 3631541 is a prime.

Together with 3631541, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3631541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1815771 + 1815772.

It is an arithmetic number, because the mean of its divisors is an integer number (1815772).

Almost surely, 2^3631543 is an apocalyptic number.

3631543 is a deficient number, since it is larger than the sum of its proper divisors (1).

3631543 is an equidigital number, since it uses as much as digits as its factorization.

3631543 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3240, while the sum is 25.

The square root of 3631543 is about 1905.6607777881. The cubic root of 3631543 is about 153.7082094982.

The spelling of 3631543 in words is "three million, six hundred thirty-one thousand, five hundred forty-three".