628903852 has 12 divisors (see below), whose sum is σ = 1104500376. Its totient is φ = 313332320.

The previous prime is 628903801. The next prime is 628903859. The reversal of 628903852 is 258309826.

It is a junction number, because it is equal to n+sod(n) for n = 628903799 and 628903808.

It is not an unprimeable number, because it can be changed into a prime (628903859) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 278638 + ... + 280885.

It is an arithmetic number, because the mean of its divisors is an integer number (92041698).

Almost surely, 2^628903852 is an apocalyptic number.

It is an amenable number.

628903852 is a deficient number, since it is larger than the sum of its proper divisors (475596524).

628903852 is a wasteful number, since it uses less digits than its factorization.

628903852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 559808 (or 559806 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 43.

The square root of 628903852 is about 25077.9554988041. The cubic root of 628903852 is about 856.7644112876.

The spelling of 628903852 in words is "six hundred twenty-eight million, nine hundred three thousand, eight hundred fifty-two".