4949449 has 2 divisors, whose sum is σ = 4949450. Its totient is φ = 4949448.

The previous prime is 4949447. The next prime is 4949471. The reversal of 4949449 is 9449494.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2699449 + 2250000 = 1643^2 + 1500^2 .

It is a cyclic number.

It is not a de Polignac number, because 4949449 - 2¹ = 4949447 is a prime.

Together with 4949447, it forms a pair of twin primes.

It is an Ulam number.

It is not a weakly prime, because it can be changed into another prime (4949447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2474724 + 2474725.

It is an arithmetic number, because the mean of its divisors is an integer number (2474725).

Almost surely, 2^4949449 is an apocalyptic number.

It is an amenable number.

4949449 is a deficient number, since it is larger than the sum of its proper divisors (1).

4949449 is an equidigital number, since it uses as much as digits as its factorization.

4949449 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 186624, while the sum is 43.

The square root of 4949449 is about 2224.7357146412. The cubic root of 4949449 is about 170.4193683121.

The spelling of 4949449 in words is "four million, nine hundred forty-nine thousand, four hundred forty-nine".