628305193 has 8 divisors (see below), whose sum is σ = 667280160. Its totient is φ = 589554240.

The previous prime is 628305173. The next prime is 628305211. The reversal of 628305193 is 391503826.

628305193 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 628305193 - 2¹³ = 628297001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (628305113) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50203 + ... + 61456.

It is an arithmetic number, because the mean of its divisors is an integer number (83410020).

Almost surely, 2^628305193 is an apocalyptic number.

It is an amenable number.

628305193 is a deficient number, since it is larger than the sum of its proper divisors (38974967).

628305193 is a wasteful number, since it uses less digits than its factorization.

628305193 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112007.

The product of its (nonzero) digits is 38880, while the sum is 37.

The square root of 628305193 is about 25066.0166959172. The cubic root of 628305193 is about 856.4924711715.

The spelling of 628305193 in words is "six hundred twenty-eight million, three hundred five thousand, one hundred ninety-three".