693875728 has 80 divisors (see below), whose sum is σ = 1708112896. Its totient is φ = 265628160.

The previous prime is 693875719. The next prime is 693875747. The reversal of 693875728 is 827578396.

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 15 ways as a sum of consecutive naturals, for example, 37450 + ... + 52822.

Almost surely, 2^693875728 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 693875728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (854056448).

693875728 is an abundant number, since it is smaller than the sum of its proper divisors (1014237168).

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

693875728 is a wasteful number, since it uses less digits than its factorization.

693875728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15432 (or 15426 counting only the distinct ones).

The product of its digits is 5080320, while the sum is 55.

The square root of 693875728 is about 26341.5209887356. The cubic root of 693875728 is about 885.3070010696.

The spelling of 693875728 in words is "six hundred ninety-three million, eight hundred seventy-five thousand, seven hundred twenty-eight".