22233623 has 4 divisors (see below), whose sum is σ = 22750728. Its totient is φ = 21716520.

The previous prime is 22233613. The next prime is 22233641. The reversal of 22233623 is 32633222.

It is a happy number.

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 22233623 - 2¹⁸ = 21971479 is a prime.

It is a super-2 number, since 2×22233623² = 988667983412258, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22233613) 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, 258488 + ... + 258573.

It is an arithmetic number, because the mean of its divisors is an integer number (5687682).

Almost surely, 2^22233623 is an apocalyptic number.

22233623 is a deficient number, since it is larger than the sum of its proper divisors (517105).

22233623 is an equidigital number, since it uses as much as digits as its factorization.

22233623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 517104.

The product of its digits is 2592, while the sum is 23.

The square root of 22233623 is about 4715.2542879467. The cubic root of 22233623 is about 281.1922924895.

Adding to 22233623 its reverse (32633222), we get a palindrome (54866845).

The spelling of 22233623 in words is "twenty-two million, two hundred thirty-three thousand, six hundred twenty-three".