628738682 has 32 divisors (see below), whose sum is σ = 1128919680. Its totient is φ = 258822720.

The previous prime is 628738681. The next prime is 628738711. The reversal of 628738682 is 286837826.

It is a self number, because there is not a number n which added to its sum of digits gives 628738682.

It is not an unprimeable number, because it can be changed into a prime (628738681) 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 15 ways as a sum of consecutive naturals, for example, 5582 + ... + 35897.

It is an arithmetic number, because the mean of its divisors is an integer number (35278740).

Almost surely, 2^628738682 is an apocalyptic number.

628738682 is a deficient number, since it is larger than the sum of its proper divisors (500180998).

628738682 is a wasteful number, since it uses less digits than its factorization.

628738682 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41558.

The product of its digits is 1548288, while the sum is 50.

The square root of 628738682 is about 25074.6621512634. The cubic root of 628738682 is about 856.6894002624.

The spelling of 628738682 in words is "six hundred twenty-eight million, seven hundred thirty-eight thousand, six hundred eighty-two".