673028720 has 240 divisors, whose sum is σ = 2009121408. Its totient is φ = 207728640.

The previous prime is 673028717. The next prime is 673028747. The reversal of 673028720 is 27820376.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a congruent number.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 2394980 + ... + 2395260.

Almost surely, 2^673028720 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 673028720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1004560704).

673028720 is an abundant number, since it is smaller than the sum of its proper divisors (1336092688).

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

673028720 is a wasteful number, since it uses less digits than its factorization.

673028720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 368 (or 355 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 35.

The square root of 673028720 is about 25942.7970735617. The cubic root of 673028720 is about 876.3505543594.

The spelling of 673028720 in words is "six hundred seventy-three million, twenty-eight thousand, seven hundred twenty".