628925 has 12 divisors (see below), whose sum is σ = 851136. Its totient is φ = 457200.

The previous prime is 628921. The next prime is 628937. The reversal of 628925 is 529826.

It is not a de Polignac number, because 628925 - 2² = 628921 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 628891 and 628900.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (628921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 869 + ... + 1418.

It is an arithmetic number, because the mean of its divisors is an integer number (70928).

2⁶²⁸⁹²⁵ is an apocalyptic number.

It is an amenable number.

628925 is a deficient number, since it is larger than the sum of its proper divisors (222211).

628925 is a wasteful number, since it uses less digits than its factorization.

628925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2308 (or 2303 counting only the distinct ones).

The product of its digits is 8640, while the sum is 32.

The square root of 628925 is about 793.0479178461. The cubic root of 628925 is about 85.6774014584.

Subtracting from 628925 its reverse (529826), we obtain a palindrome (99099).

The spelling of 628925 in words is "six hundred twenty-eight thousand, nine hundred twenty-five".