673858128 has 40 divisors (see below), whose sum is σ = 1766790688. Its totient is φ = 221265792.

The previous prime is 673858111. The next prime is 673858139. The reversal of 673858128 is 821858376.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 101551 + ... + 107982.

Almost surely, 2^673858128 is an apocalyptic number.

It is an amenable number.

673858128 is an abundant number, since it is smaller than the sum of its proper divisors (1092932560).

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

673858128 is a wasteful number, since it uses less digits than its factorization.

673858128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209611 (or 209605 counting only the distinct ones).

The product of its digits is 645120, while the sum is 48.

The square root of 673858128 is about 25958.7774750661. Note that the first 3 decimals coincide. The cubic root of 673858128 is about 876.7103972428.

The spelling of 673858128 in words is "six hundred seventy-three million, eight hundred fifty-eight thousand, one hundred twenty-eight".