628809088 has 32 divisors (see below), whose sum is σ = 1295910000. Its totient is φ = 303561216.

The previous prime is 628809061. The next prime is 628809089. The reversal of 628809088 is 880908826.

628809088 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (628809089) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 80988 + ... + 88411.

Almost surely, 2^628809088 is an apocalyptic number.

It is an amenable number.

628809088 is an abundant number, since it is smaller than the sum of its proper divisors (667100912).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

628809088 is a wasteful number, since it uses less digits than its factorization.

628809088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169442 (or 169430 counting only the distinct ones).

The product of its (nonzero) digits is 442368, while the sum is 49.

The square root of 628809088 is about 25076.0660391537. The cubic root of 628809088 is about 856.7213763570.

The spelling of 628809088 in words is "six hundred twenty-eight million, eight hundred nine thousand, eighty-eight".