628889206 has 16 divisors (see below), whose sum is σ = 1034783568. Its totient is φ = 284277600.

The previous prime is 628889203. The next prime is 628889221. The reversal of 628889206 is 602988826.

It is a self number, because there is not a number n which added to its sum of digits gives 628889206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (628889203) 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, 74985 + ... + 82948.

It is an arithmetic number, because the mean of its divisors is an integer number (64673973).

Almost surely, 2^628889206 is an apocalyptic number.

628889206 is a deficient number, since it is larger than the sum of its proper divisors (405894362).

628889206 is a wasteful number, since it uses less digits than its factorization.

628889206 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158127.

The product of its (nonzero) digits is 663552, while the sum is 49.

The square root of 628889206 is about 25077.6634876537. The cubic root of 628889206 is about 856.7577604199.

The spelling of 628889206 in words is "six hundred twenty-eight million, eight hundred eighty-nine thousand, two hundred six".