4424639 has 2 divisors, whose sum is σ = 4424640. Its totient is φ = 4424638.

The previous prime is 4424621. The next prime is 4424653. The reversal of 4424639 is 9364244.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 4424639 - 2⁸ = 4424383 is a prime.

It is an Ulam number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4424659) 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, 2212319 + 2212320.

It is an arithmetic number, because the mean of its divisors is an integer number (2212320).

Almost surely, 2^4424639 is an apocalyptic number.

4424639 is a deficient number, since it is larger than the sum of its proper divisors (1).

4424639 is an equidigital number, since it uses as much as digits as its factorization.

4424639 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20736, while the sum is 32.

The square root of 4424639 is about 2103.4825884708. The cubic root of 4424639 is about 164.1695524872.

The spelling of 4424639 in words is "four million, four hundred twenty-four thousand, six hundred thirty-nine".