673444868 has 48 divisors (see below), whose sum is σ = 1296497664. Its totient is φ = 304696320.

The previous prime is 673444867. The next prime is 673444883. The reversal of 673444868 is 868444376.

It is not an unprimeable number, because it can be changed into a prime (673444867) 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, 351080 + ... + 352992.

It is an arithmetic number, because the mean of its divisors is an integer number (27010368).

Almost surely, 2^673444868 is an apocalyptic number.

673444868 is a gapful number since it is divisible by the number (68) formed by its first and last digit.

It is an amenable number.

673444868 is a deficient number, since it is larger than the sum of its proper divisors (623052796).

673444868 is a wasteful number, since it uses less digits than its factorization.

673444868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2132 (or 2130 counting only the distinct ones).

The product of its digits is 3096576, while the sum is 50.

The square root of 673444868 is about 25950.8163262738. The cubic root of 673444868 is about 876.5311392190.

The spelling of 673444868 in words is "six hundred seventy-three million, four hundred forty-four thousand, eight hundred sixty-eight".