673550449 has 16 divisors (see below), whose sum is σ = 796569984. Its totient is φ = 561456000.

The previous prime is 673550441. The next prime is 673550497. The reversal of 673550449 is 944055376.

It is a cyclic number.

It is not a de Polignac number, because 673550449 - 2³ = 673550441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (673550441) 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 in 15 ways as a sum of consecutive naturals, for example, 5997 + ... + 37189.

It is an arithmetic number, because the mean of its divisors is an integer number (49785624).

Almost surely, 2^673550449 is an apocalyptic number.

It is an amenable number.

673550449 is a deficient number, since it is larger than the sum of its proper divisors (123019535).

673550449 is a wasteful number, since it uses less digits than its factorization.

673550449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31368.

The product of its (nonzero) digits is 453600, while the sum is 43.

The square root of 673550449 is about 25952.8504985483. The cubic root of 673550449 is about 876.5769436111.

The spelling of 673550449 in words is "six hundred seventy-three million, five hundred fifty thousand, four hundred forty-nine".