3643043 has 2 divisors, whose sum is σ = 3643044. Its totient is φ = 3643042.

The previous prime is 3643033. The next prime is 3643063. The reversal of 3643043 is 3403463.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3643043 - 2¹⁰ = 3642019 is a prime.

It is not a weakly prime, because it can be changed into another prime (3643033) 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, 1821521 + 1821522.

It is an arithmetic number, because the mean of its divisors is an integer number (1821522).

Almost surely, 2^3643043 is an apocalyptic number.

3643043 is a deficient number, since it is larger than the sum of its proper divisors (1).

3643043 is an equidigital number, since it uses as much as digits as its factorization.

3643043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2592, while the sum is 23.

The square root of 3643043 is about 1908.6757189214. The cubic root of 3643043 is about 153.8702876947.

The spelling of 3643043 in words is "three million, six hundred forty-three thousand, forty-three".