4421849 has 2 divisors, whose sum is σ = 4421850. Its totient is φ = 4421848.

The previous prime is 4421839. The next prime is 4421861. The reversal of 4421849 is 9481244.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3553225 + 868624 = 1885^2 + 932^2 .

It is a cyclic number.

It is not a de Polignac number, because 4421849 - 2¹² = 4417753 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (4421839) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2210924 + 2210925.

It is an arithmetic number, because the mean of its divisors is an integer number (2210925).

Almost surely, 2^4421849 is an apocalyptic number.

It is an amenable number.

4421849 is a deficient number, since it is larger than the sum of its proper divisors (1).

4421849 is an equidigital number, since it uses as much as digits as its factorization.

4421849 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9216, while the sum is 32.

The square root of 4421849 is about 2102.8192979902. The cubic root of 4421849 is about 164.1350389854.

The spelling of 4421849 in words is "four million, four hundred twenty-one thousand, eight hundred forty-nine".