4434421 has 2 divisors, whose sum is σ = 4434422. Its totient is φ = 4434420.

The previous prime is 4434383. The next prime is 4434427. The reversal of 4434421 is 1244344.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4056196 + 378225 = 2014^2 + 615^2 .

It is a cyclic number.

It is not a de Polignac number, because 4434421 - 2¹⁵ = 4401653 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4434392 and 4434401.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4434427) 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, 2217210 + 2217211.

It is an arithmetic number, because the mean of its divisors is an integer number (2217211).

Almost surely, 2^4434421 is an apocalyptic number.

It is an amenable number.

4434421 is a deficient number, since it is larger than the sum of its proper divisors (1).

4434421 is an equidigital number, since it uses as much as digits as its factorization.

4434421 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1536, while the sum is 22.

The square root of 4434421 is about 2105.8064963334. The cubic root of 4434421 is about 164.2904455564.

Adding to 4434421 its reverse (1244344), we get a palindrome (5678765).

The spelling of 4434421 in words is "four million, four hundred thirty-four thousand, four hundred twenty-one".