23323421 has 16 divisors (see below), whose sum is σ = 26231040. Its totient is φ = 20556480.

The previous prime is 23323367. The next prime is 23323441. The reversal of 23323421 is 12432332.

It is a cyclic number.

It is not a de Polignac number, because 23323421 - 2¹⁸ = 23061277 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 23323393 and 23323402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23323441) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 101735 + ... + 101963.

It is an arithmetic number, because the mean of its divisors is an integer number (1639440).

Almost surely, 2^23323421 is an apocalyptic number.

It is an amenable number.

23323421 is a deficient number, since it is larger than the sum of its proper divisors (2907619).

23323421 is a wasteful number, since it uses less digits than its factorization.

23323421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 484.

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

The square root of 23323421 is about 4829.4327824290. The cubic root of 23323421 is about 285.7134928907.

Adding to 23323421 its reverse (12432332), we get a palindrome (35755753).

The spelling of 23323421 in words is "twenty-three million, three hundred twenty-three thousand, four hundred twenty-one".