628108187 has 8 divisors (see below), whose sum is σ = 742591200. Its totient is φ = 519813504.

The previous prime is 628108177. The next prime is 628108199. The reversal of 628108187 is 781801826.

628108187 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 not a de Polignac number, because 628108187 - 2⁴ = 628108171 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (628108177) 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, 1546862 + ... + 1547267.

It is an arithmetic number, because the mean of its divisors is an integer number (92823900).

Almost surely, 2^628108187 is an apocalyptic number.

628108187 is a deficient number, since it is larger than the sum of its proper divisors (114483013).

628108187 is a wasteful number, since it uses less digits than its factorization.

628108187 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3094165.

The product of its (nonzero) digits is 43008, while the sum is 41.

The square root of 628108187 is about 25062.0866449703. The cubic root of 628108187 is about 856.4029436636.

The spelling of 628108187 in words is "six hundred twenty-eight million, one hundred eight thousand, one hundred eighty-seven".