22723223 has 4 divisors (see below), whose sum is σ = 22831128. Its totient is φ = 22615320.

The previous prime is 22723199. The next prime is 22723277. The reversal of 22723223 is 32232722.

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 22723223 - 2¹⁴ = 22706839 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 (22722223) 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, 53636 + ... + 54057.

It is an arithmetic number, because the mean of its divisors is an integer number (5707782).

Almost surely, 2^22723223 is an apocalyptic number.

22723223 is a deficient number, since it is larger than the sum of its proper divisors (107905).

22723223 is a wasteful number, since it uses less digits than its factorization.

22723223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107904.

The product of its digits is 2016, while the sum is 23.

The square root of 22723223 is about 4766.8881883258. Note that the first 3 decimals coincide. The cubic root of 22723223 is about 283.2413420698.

Adding to 22723223 its reverse (32232722), we get a palindrome (54955945).

The spelling of 22723223 in words is "twenty-two million, seven hundred twenty-three thousand, two hundred twenty-three".