23642213 has 8 divisors (see below), whose sum is σ = 28441920. Its totient is φ = 19198080.

The previous prime is 23642191. The next prime is 23642239. The reversal of 23642213 is 31224632.

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

It is a cyclic number.

It is not a de Polignac number, because 23642213 - 2⁸ = 23641957 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 (23642513) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 88748 + ... + 89013.

It is an arithmetic number, because the mean of its divisors is an integer number (3555240).

Almost surely, 2^23642213 is an apocalyptic number.

It is an amenable number.

23642213 is a deficient number, since it is larger than the sum of its proper divisors (4799707).

23642213 is a wasteful number, since it uses less digits than its factorization.

23642213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177787.

The product of its digits is 1728, while the sum is 23.

The square root of 23642213 is about 4862.3258837721. The cubic root of 23642213 is about 287.0093478726.

Adding to 23642213 its reverse (31224632), we get a palindrome (54866845).

The spelling of 23642213 in words is "twenty-three million, six hundred forty-two thousand, two hundred thirteen".