628789012 has 12 divisors (see below), whose sum is σ = 1101866976. Its totient is φ = 313969880.

The previous prime is 628789009. The next prime is 628789033. The reversal of 628789012 is 210987826.

628789012 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×628789012² = 790751243223872288, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 628789012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 102814 + ... + 108757.

It is an arithmetic number, because the mean of its divisors is an integer number (91822248).

Almost surely, 2^628789012 is an apocalyptic number.

It is an amenable number.

628789012 is a deficient number, since it is larger than the sum of its proper divisors (473077964).

628789012 is a wasteful number, since it uses less digits than its factorization.

628789012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212318 (or 212316 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 43.

The square root of 628789012 is about 25075.6657339342. The cubic root of 628789012 is about 856.7122587399.

The spelling of 628789012 in words is "six hundred twenty-eight million, seven hundred eighty-nine thousand, twelve".