4449491 has 2 divisors, whose sum is σ = 4449492. Its totient is φ = 4449490.

The previous prime is 4449481. The next prime is 4449493. The reversal of 4449491 is 1949444.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4449491 is a prime.

It is a super-3 number, since 3×4449491³ (a number of 21 digits) contains 333 as substring.

Together with 4449493, it forms a pair of twin primes.

It is a Chen prime.

It is an Ulam number.

It is not a weakly prime, because it can be changed into another prime (4449493) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2224745 + 2224746.

It is an arithmetic number, because the mean of its divisors is an integer number (2224746).

Almost surely, 2^4449491 is an apocalyptic number.

4449491 is a deficient number, since it is larger than the sum of its proper divisors (1).

4449491 is an equidigital number, since it uses as much as digits as its factorization.

4449491 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20736, while the sum is 35.

The square root of 4449491 is about 2109.3816629524. The cubic root of 4449491 is about 164.4763441315.

The spelling of 4449491 in words is "four million, four hundred forty-nine thousand, four hundred ninety-one".