628653 has 16 divisors (see below), whose sum is σ = 907200. Its totient is φ = 385920.

The previous prime is 628651. The next prime is 628673. The reversal of 628653 is 356826.

It is not a de Polignac number, because 628653 - 2¹ = 628651 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 628653.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (628651) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2203 + ... + 2471.

It is an arithmetic number, because the mean of its divisors is an integer number (56700).

2⁶²⁸⁶⁵³ is an apocalyptic number.

It is an amenable number.

628653 is a deficient number, since it is larger than the sum of its proper divisors (278547).

628653 is a wasteful number, since it uses less digits than its factorization.

628653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 332.

The product of its digits is 8640, while the sum is 30.

The square root of 628653 is about 792.8764090323. The cubic root of 628653 is about 85.6650483090.

The spelling of 628653 in words is "six hundred twenty-eight thousand, six hundred fifty-three".