618223 has 4 divisors (see below), whose sum is σ = 623808. Its totient is φ = 612640.

The previous prime is 618199. The next prime is 618227. The reversal of 618223 is 322816.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 618223 - 2¹³ = 610031 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 618194 and 618203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (618227) 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, 2623 + ... + 2848.

It is an arithmetic number, because the mean of its divisors is an integer number (155952).

2⁶¹⁸²²³ is an apocalyptic number.

618223 is a deficient number, since it is larger than the sum of its proper divisors (5585).

618223 is a wasteful number, since it uses less digits than its factorization.

618223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5584.

The product of its digits is 576, while the sum is 22.

The square root of 618223 is about 786.2715815798. The cubic root of 618223 is about 85.1886467566.

It can be divided in two parts, 618 and 223, that added together give a square (841 = 29²).

The spelling of 618223 in words is "six hundred eighteen thousand, two hundred twenty-three".