628573 has 4 divisors (see below), whose sum is σ = 685728. Its totient is φ = 571420.

The previous prime is 628561. The next prime is 628583. The reversal of 628573 is 375826.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 628573 - 2¹⁷ = 497501 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (628583) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28561 + ... + 28582.

It is an arithmetic number, because the mean of its divisors is an integer number (171432).

2⁶²⁸⁵⁷³ is an apocalyptic number.

It is an amenable number.

628573 is a deficient number, since it is larger than the sum of its proper divisors (57155).

628573 is a wasteful number, since it uses less digits than its factorization.

628573 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57154.

The product of its digits is 10080, while the sum is 31.

The square root of 628573 is about 792.8259582027. The cubic root of 628573 is about 85.6614143516.

The spelling of 628573 in words is "six hundred twenty-eight thousand, five hundred seventy-three".