618573 has 4 divisors (see below), whose sum is σ = 824768. Its totient is φ = 412380.

The previous prime is 618571. The next prime is 618577. The reversal of 618573 is 375816.

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 not a de Polignac number, because 618573 - 2¹ = 618571 is a prime.

It is a D-number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 618573.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (618571) 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, 103093 + ... + 103098.

It is an arithmetic number, because the mean of its divisors is an integer number (206192).

2⁶¹⁸⁵⁷³ is an apocalyptic number.

It is an amenable number.

618573 is a deficient number, since it is larger than the sum of its proper divisors (206195).

618573 is a wasteful number, since it uses less digits than its factorization.

618573 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206194.

The product of its digits is 5040, while the sum is 30.

The square root of 618573 is about 786.4941194949. The cubic root of 618573 is about 85.2047199219.

The spelling of 618573 in words is "six hundred eighteen thousand, five hundred seventy-three".