4408643 has 2 divisors, whose sum is σ = 4408644. Its totient is φ = 4408642.

The previous prime is 4408639. The next prime is 4408681. The reversal of 4408643 is 3468044.

4408643 is an esthetic number in base 16, because in such base its adjacent digits differ by 1.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4408643 - 2² = 4408639 is a prime.

It is a super-2 number, since 2×4408643² = 38872266202898, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is equal to p₃₀₉₈₉₀ and since 4408643 and 309890 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (4408693) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2204321 + 2204322.

It is an arithmetic number, because the mean of its divisors is an integer number (2204322).

Almost surely, 2^4408643 is an apocalyptic number.

4408643 is a deficient number, since it is larger than the sum of its proper divisors (1).

4408643 is an equidigital number, since it uses as much as digits as its factorization.

4408643 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9216, while the sum is 29.

The square root of 4408643 is about 2099.6768799032. The cubic root of 4408643 is about 163.9714777882.

The spelling of 4408643 in words is "four million, four hundred eight thousand, six hundred forty-three".