673722684 has 60 divisors (see below), whose sum is σ = 1772188264. Its totient is φ = 223178976.

The previous prime is 673722683. The next prime is 673722689. The reversal of 673722684 is 486227376.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (673722683) 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 19 ways as a sum of consecutive naturals, for example, 46434 + ... + 59190.

Almost surely, 2^673722684 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 673722684, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (886094132).

673722684 is an abundant number, since it is smaller than the sum of its proper divisors (1098465580).

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

673722684 is a wasteful number, since it uses less digits than its factorization.

673722684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12936 (or 12925 counting only the distinct ones).

The product of its digits is 677376, while the sum is 45.

The square root of 673722684 is about 25956.1685154030. The cubic root of 673722684 is about 876.6516543538.

The spelling of 673722684 in words is "six hundred seventy-three million, seven hundred twenty-two thousand, six hundred eighty-four".