23223213 has 32 divisors (see below), whose sum is σ = 37452800. Its totient is φ = 14136768.

The previous prime is 23223209. The next prime is 23223223. The reversal of 23223213 is 31232232.

It is a happy number.

It is not a de Polignac number, because 23223213 - 2² = 23223209 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23223203) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 37956 + ... + 38562.

It is an arithmetic number, because the mean of its divisors is an integer number (1170400).

Almost surely, 2^23223213 is an apocalyptic number.

It is an amenable number.

23223213 is a deficient number, since it is larger than the sum of its proper divisors (14229587).

23223213 is a wasteful number, since it uses less digits than its factorization.

23223213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 738 (or 732 counting only the distinct ones).

The product of its digits is 432, while the sum is 18.

The square root of 23223213 is about 4819.0468974684. The cubic root of 23223213 is about 285.3037205356.

Adding to 23223213 its reverse (31232232), we get a palindrome (54455445).

It can be divided in two parts, 23223 and 213, that added together give a triangular number (23436 = T₂₁₆).

The spelling of 23223213 in words is "twenty-three million, two hundred twenty-three thousand, two hundred thirteen".