4391449 has 2 divisors, whose sum is σ = 4391450. Its totient is φ = 4391448.

The previous prime is 4391437. The next prime is 4391483. The reversal of 4391449 is 9441934.

4391449 is an esthetic number in base 13, because in such base its adjacent digits differ by 1.

It is an a-pointer prime, because the next prime (4391483) can be obtained adding 4391449 to its sum of digits (34).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3125824 + 1265625 = 1768^2 + 1125^2 .

It is a cyclic number.

It is not a de Polignac number, because 4391449 - 2⁵ = 4391417 is a prime.

It is not a weakly prime, because it can be changed into another prime (4391249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2195724 + 2195725.

It is an arithmetic number, because the mean of its divisors is an integer number (2195725).

Almost surely, 2^4391449 is an apocalyptic number.

It is an amenable number.

4391449 is a deficient number, since it is larger than the sum of its proper divisors (1).

4391449 is an equidigital number, since it uses as much as digits as its factorization.

4391449 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 4391449 is about 2095.5784404312. The cubic root of 4391449 is about 163.7580335200.

The spelling of 4391449 in words is "four million, three hundred ninety-one thousand, four hundred forty-nine".