628811048 has 8 divisors (see below), whose sum is σ = 1179020730. Its totient is φ = 314405520.

The previous prime is 628811047. The next prime is 628811063. The reversal of 628811048 is 840118826.

628811048 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 464919844 + 163891204 = 21562^2 + 12802^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (628811047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39300683 + ... + 39300698.

Almost surely, 2^628811048 is an apocalyptic number.

It is an amenable number.

628811048 is a deficient number, since it is larger than the sum of its proper divisors (550209682).

628811048 is a wasteful number, since it uses less digits than its factorization.

628811048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78601387 (or 78601383 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 38.

The square root of 628811048 is about 25076.1051202135. The cubic root of 628811048 is about 856.7222664905.

The spelling of 628811048 in words is "six hundred twenty-eight million, eight hundred eleven thousand, forty-eight".