628584764 has 12 divisors (see below), whose sum is σ = 1106102088. Its totient is φ = 312555600.

The previous prime is 628584757. The next prime is 628584769. The reversal of 628584764 is 467485826.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (628584769) 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 3 ways as a sum of consecutive naturals, for example, 433382 + ... + 434829.

It is an arithmetic number, because the mean of its divisors is an integer number (92175174).

Almost surely, 2^628584764 is an apocalyptic number.

It is an amenable number.

628584764 is a deficient number, since it is larger than the sum of its proper divisors (477517324).

628584764 is a wasteful number, since it uses less digits than its factorization.

628584764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 868396 (or 868394 counting only the distinct ones).

The product of its digits is 2580480, while the sum is 50.

The square root of 628584764 is about 25071.5927695071. The cubic root of 628584764 is about 856.6194874437.

The spelling of 628584764 in words is "six hundred twenty-eight million, five hundred eighty-four thousand, seven hundred sixty-four".