628634545 has 16 divisors (see below), whose sum is σ = 940503168. Its totient is φ = 391875840.

The previous prime is 628634543. The next prime is 628634549. The reversal of 628634545 is 545436826.

628634545 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 628634545 - 2¹ = 628634543 is a prime.

It is not an unprimeable number, because it can be changed into a prime (628634543) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 816024 + ... + 816793.

It is an arithmetic number, because the mean of its divisors is an integer number (58781448).

Almost surely, 2^628634545 is an apocalyptic number.

It is an amenable number.

628634545 is a deficient number, since it is larger than the sum of its proper divisors (311868623).

628634545 is a wasteful number, since it uses less digits than its factorization.

628634545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1632840.

The product of its digits is 691200, while the sum is 43.

The square root of 628634545 is about 25072.5855268259. The cubic root of 628634545 is about 856.6421002778.

The spelling of 628634545 in words is "six hundred twenty-eight million, six hundred thirty-four thousand, five hundred forty-five".