23212433 has 4 divisors (see below), whose sum is σ = 24434160. Its totient is φ = 21990708.

The previous prime is 23212403. The next prime is 23212439. The reversal of 23212433 is 33421232.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 23212433 - 2⁸ = 23212177 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (23212439) 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, 610835 + ... + 610872.

It is an arithmetic number, because the mean of its divisors is an integer number (6108540).

Almost surely, 2^23212433 is an apocalyptic number.

It is an amenable number.

23212433 is a deficient number, since it is larger than the sum of its proper divisors (1221727).

23212433 is a wasteful number, since it uses less digits than its factorization.

23212433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1221726.

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

The square root of 23212433 is about 4817.9282892131. The cubic root of 23212433 is about 285.2595685900.

Adding to 23212433 its reverse (33421232), we get a palindrome (56633665).

The spelling of 23212433 in words is "twenty-three million, two hundred twelve thousand, four hundred thirty-three".