673444689 has 8 divisors (see below), whose sum is σ = 898116960. Its totient is φ = 448867776.

The previous prime is 673444679. The next prime is 673444741. The reversal of 673444689 is 986444376.

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

It is not a de Polignac number, because 673444689 - 2⁷ = 673444561 is a prime.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (673444649) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5299 + ... + 37080.

It is an arithmetic number, because the mean of its divisors is an integer number (112264620).

Almost surely, 2^673444689 is an apocalyptic number.

It is an amenable number.

673444689 is a deficient number, since it is larger than the sum of its proper divisors (224672271).

673444689 is a wasteful number, since it uses less digits than its factorization.

673444689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47679.

The product of its digits is 3483648, while the sum is 51.

The square root of 673444689 is about 25950.8128774418. The cubic root of 673444689 is about 876.5310615591.

The spelling of 673444689 in words is "six hundred seventy-three million, four hundred forty-four thousand, six hundred eighty-nine".