4084439 has 2 divisors, whose sum is σ = 4084440. Its totient is φ = 4084438.

The previous prime is 4084427. The next prime is 4084517. The reversal of 4084439 is 9344804.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4084439 - 2²⁰ = 3035863 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4084139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2042219 + 2042220.

It is an arithmetic number, because the mean of its divisors is an integer number (2042220).

Almost surely, 2^4084439 is an apocalyptic number.

4084439 is a deficient number, since it is larger than the sum of its proper divisors (1).

4084439 is an equidigital number, since it uses as much as digits as its factorization.

4084439 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13824, while the sum is 32.

The square root of 4084439 is about 2020.9995051954. Note that the first 3 decimals coincide. The cubic root of 4084439 is about 159.8493242956.

The spelling of 4084439 in words is "four million, eighty-four thousand, four hundred thirty-nine".