628325 has 12 divisors (see below), whose sum is σ = 799428. Its totient is φ = 489600.

The previous prime is 628319. The next prime is 628357. The reversal of 628325 is 523826.

628325 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 6 ways, for example, as 315844 + 312481 = 562^2 + 559^2 .

It is not a de Polignac number, because 628325 - 2⁶ = 628261 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a nialpdrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 628294 and 628303.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 628325.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 719 + ... + 1331.

It is an arithmetic number, because the mean of its divisors is an integer number (66619).

2⁶²⁸³²⁵ is an apocalyptic number.

It is an amenable number.

628325 is a deficient number, since it is larger than the sum of its proper divisors (171103).

628325 is a wasteful number, since it uses less digits than its factorization.

628325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 664 (or 659 counting only the distinct ones).

The product of its digits is 2880, while the sum is 26.

The square root of 628325 is about 792.6695402247. The cubic root of 628325 is about 85.6501471239.

The spelling of 628325 in words is "six hundred twenty-eight thousand, three hundred twenty-five".