628475 has 12 divisors (see below), whose sum is σ = 813936. Its totient is φ = 480480.

The previous prime is 628447. The next prime is 628477. The reversal of 628475 is 574826.

It is not a de Polignac number, because 628475 - 2⁸ = 628219 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (628477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 29 + ... + 1121.

It is an arithmetic number, because the mean of its divisors is an integer number (67828).

2⁶²⁸⁴⁷⁵ is an apocalyptic number.

628475 is a deficient number, since it is larger than the sum of its proper divisors (185461).

628475 is a wasteful number, since it uses less digits than its factorization.

628475 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1126 (or 1121 counting only the distinct ones).

The product of its digits is 13440, while the sum is 32.

The square root of 628475 is about 792.7641515609. The cubic root of 628475 is about 85.6569623336.

The spelling of 628475 in words is "six hundred twenty-eight thousand, four hundred seventy-five".