673550208 has 128 divisors (see below), whose sum is σ = 2013888000. Its totient is φ = 221584896.

The previous prime is 673550203. The next prime is 673550219. The reversal of 673550208 is 802055376.

It is a tau number, because it is divible by the number of its divisors (128).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (673550203) 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, 271791 + ... + 274257.

It is an arithmetic number, because the mean of its divisors is an integer number (15733500).

Almost surely, 2^673550208 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 673550208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1006944000).

673550208 is an abundant number, since it is smaller than the sum of its proper divisors (1340337792).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

673550208 is a wasteful number, since it uses less digits than its factorization.

673550208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2569 (or 2551 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 36.

The square root of 673550208 is about 25952.8458555126. The cubic root of 673550208 is about 876.5768390631.

The spelling of 673550208 in words is "six hundred seventy-three million, five hundred fifty thousand, two hundred eight".