628471504 has 40 divisors (see below), whose sum is σ = 1345360320. Its totient is φ = 282889728.

The previous prime is 628471489. The next prime is 628471541. The reversal of 628471504 is 405174826.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43974 + ... + 56485.

It is an arithmetic number, because the mean of its divisors is an integer number (33634008).

Almost surely, 2^628471504 is an apocalyptic number.

It is an amenable number.

628471504 is an abundant number, since it is smaller than the sum of its proper divisors (716888816).

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

628471504 is a wasteful number, since it uses less digits than its factorization.

628471504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100507 (or 100501 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 37.

The square root of 628471504 is about 25069.3339361061. Note that the first 3 decimals coincide. The cubic root of 628471504 is about 856.5680350613.

The spelling of 628471504 in words is "six hundred twenty-eight million, four hundred seventy-one thousand, five hundred four".