673442566 has 8 divisors (see below), whose sum is σ = 1010484144. Its totient is φ = 336614520.

The previous prime is 673442563. The next prime is 673442591. The reversal of 673442566 is 665244376.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (673442563) 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 in 3 ways as a sum of consecutive naturals, for example, 45250 + ... + 58261.

It is an arithmetic number, because the mean of its divisors is an integer number (126310518).

Almost surely, 2^673442566 is an apocalyptic number.

673442566 is a deficient number, since it is larger than the sum of its proper divisors (337041578).

673442566 is a wasteful number, since it uses less digits than its factorization.

673442566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106766.

The product of its digits is 725760, while the sum is 43.

The square root of 673442566 is about 25950.7719731032. The cubic root of 673442566 is about 876.5301404850.

The spelling of 673442566 in words is "six hundred seventy-three million, four hundred forty-two thousand, five hundred sixty-six".