628543504 has 10 divisors (see below), whose sum is σ = 1217803070. Its totient is φ = 314271744.

The previous prime is 628543493. The next prime is 628543529. The reversal of 628543504 is 405345826.

It can be written as a sum of positive squares in only one way, i.e., 535459600 + 93083904 = 23140^2 + 9648^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19641969 + ... + 19642000.

It is an arithmetic number, because the mean of its divisors is an integer number (121780307).

Almost surely, 2^628543504 is an apocalyptic number.

It is an amenable number.

628543504 is a deficient number, since it is larger than the sum of its proper divisors (589259566).

628543504 is a wasteful number, since it uses less digits than its factorization.

628543504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39283977 (or 39283971 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 37.

The square root of 628543504 is about 25070.7699123900. The cubic root of 628543504 is about 856.6007443372.

The spelling of 628543504 in words is "six hundred twenty-eight million, five hundred forty-three thousand, five hundred four".