628592628 has 12 divisors (see below), whose sum is σ = 1466716160. Its totient is φ = 209530872.

The previous prime is 628592597. The next prime is 628592639. The reversal of 628592628 is 826295826.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26191348 + ... + 26191371.

Almost surely, 2^628592628 is an apocalyptic number.

It is an amenable number.

628592628 is an abundant number, since it is smaller than the sum of its proper divisors (838123532).

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

628592628 is a wasteful number, since it uses less digits than its factorization.

628592628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52382726 (or 52382724 counting only the distinct ones).

The product of its digits is 829440, while the sum is 48.

The square root of 628592628 is about 25071.7495998983. The cubic root of 628592628 is about 856.6230597158.

The spelling of 628592628 in words is "six hundred twenty-eight million, five hundred ninety-two thousand, six hundred twenty-eight".