23343221 has 8 divisors (see below), whose sum is σ = 25718688. Its totient is φ = 21010000.

The previous prime is 23343197. The next prime is 23343223. The reversal of 23343221 is 12234332.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-23343221 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23343193 and 23343202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23343223) 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 7 ways as a sum of consecutive naturals, for example, 9395 + ... + 11616.

It is an arithmetic number, because the mean of its divisors is an integer number (3214836).

Almost surely, 2^23343221 is an apocalyptic number.

It is an amenable number.

23343221 is a deficient number, since it is larger than the sum of its proper divisors (2375467).

23343221 is a wasteful number, since it uses less digits than its factorization.

23343221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21123.

The product of its digits is 864, while the sum is 20.

The square root of 23343221 is about 4831.4822777280. The cubic root of 23343221 is about 285.7943204713.

Adding to 23343221 its reverse (12234332), we get a palindrome (35577553).

Subtracting from 23343221 its reverse (12234332), we obtain a square (11108889 = 3333²).

It can be divided in two parts, 2334 and 3221, that added together give a palindrome (5555).

The spelling of 23343221 in words is "twenty-three million, three hundred forty-three thousand, two hundred twenty-one".