628625 has 16 divisors (see below), whose sum is σ = 808704. Its totient is φ = 487600.

The previous prime is 628591. The next prime is 628651. The reversal of 628625 is 526826.

628625 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 628625 - 2⁶ = 628561 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5822 + ... + 5928.

It is an arithmetic number, because the mean of its divisors is an integer number (50544).

2⁶²⁸⁶²⁵ is an apocalyptic number.

It is an amenable number.

628625 is a deficient number, since it is larger than the sum of its proper divisors (180079).

628625 is a wasteful number, since it uses less digits than its factorization.

628625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169 (or 159 counting only the distinct ones).

The product of its digits is 5760, while the sum is 29.

The square root of 628625 is about 792.8587516071. The cubic root of 628625 is about 85.6637764590.

The spelling of 628625 in words is "six hundred twenty-eight thousand, six hundred twenty-five".