4449391 has 2 divisors, whose sum is σ = 4449392. Its totient is φ = 4449390.

The previous prime is 4449371. The next prime is 4449397. The reversal of 4449391 is 1939444.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 4449391 - 2¹⁵ = 4416623 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4449397) 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, 2224695 + 2224696.

It is an arithmetic number, because the mean of its divisors is an integer number (2224696).

Almost surely, 2^4449391 is an apocalyptic number.

4449391 is a deficient number, since it is larger than the sum of its proper divisors (1).

4449391 is an equidigital number, since it uses as much as digits as its factorization.

4449391 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15552, while the sum is 34.

The square root of 4449391 is about 2109.3579591904. The cubic root of 4449391 is about 164.4751119488.

The spelling of 4449391 in words is "four million, four hundred forty-nine thousand, three hundred ninety-one".