635223 has 4 divisors (see below), whose sum is σ = 846968. Its totient is φ = 423480.

The previous prime is 635207. The next prime is 635249. The reversal of 635223 is 322536.

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

It is not a de Polignac number, because 635223 - 2⁴ = 635207 is a prime.

It is a d-powerful number, because it can be written as 6 + 3² + 2¹⁵ + 5⁷ + 2¹⁹ + 3³ .

It is a D-number.

It is a Duffinian number.

It is a nialpdrome in base 15.

It is a self number, because there is not a number n which added to its sum of digits gives 635223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (635203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 105868 + ... + 105873.

It is an arithmetic number, because the mean of its divisors is an integer number (211742).

2⁶³⁵²²³ is an apocalyptic number.

635223 is a deficient number, since it is larger than the sum of its proper divisors (211745).

635223 is a wasteful number, since it uses less digits than its factorization.

635223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211744.

The product of its digits is 1080, while the sum is 21.

The square root of 635223 is about 797.0087828876. The cubic root of 635223 is about 85.9624407830.

Adding to 635223 its reverse (322536), we get a palindrome (957759).

It can be divided in two parts, 635 and 223, that added together give a palindrome (858).

The spelling of 635223 in words is "six hundred thirty-five thousand, two hundred twenty-three".