4044643 has 2 divisors, whose sum is σ = 4044644. Its totient is φ = 4044642.

The previous prime is 4044641. The next prime is 4044661. The reversal of 4044643 is 3464404.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4044643 - 2¹ = 4044641 is a prime.

Together with 4044641, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (4044641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2022321 + 2022322.

It is an arithmetic number, because the mean of its divisors is an integer number (2022322).

Almost surely, 2^4044643 is an apocalyptic number.

4044643 is a deficient number, since it is larger than the sum of its proper divisors (1).

4044643 is an equidigital number, since it uses as much as digits as its factorization.

4044643 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4608, while the sum is 25.

The square root of 4044643 is about 2011.1297819882. The cubic root of 4044643 is about 159.3284745906.

The spelling of 4044643 in words is "four million, forty-four thousand, six hundred forty-three".