23263213 has 4 divisors (see below), whose sum is σ = 23321628. Its totient is φ = 23204800.

The previous prime is 23263199. The next prime is 23263231. The reversal of 23263213 is 31236232.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 22306729 + 956484 = 4723^2 + 978^2 .

It is a cyclic number.

It is not a de Polignac number, because 23263213 - 2¹³ = 23255021 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23263013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28606 + ... + 29407.

It is an arithmetic number, because the mean of its divisors is an integer number (5830407).

Almost surely, 2^23263213 is an apocalyptic number.

It is an amenable number.

23263213 is a deficient number, since it is larger than the sum of its proper divisors (58415).

23263213 is an equidigital number, since it uses as much as digits as its factorization.

23263213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58414.

The product of its digits is 1296, while the sum is 22.

The square root of 23263213 is about 4823.1953101652. The cubic root of 23263213 is about 285.4674303394.

Adding to 23263213 its reverse (31236232), we get a palindrome (54499445).

The spelling of 23263213 in words is "twenty-three million, two hundred sixty-three thousand, two hundred thirteen".