23471213 has 4 divisors (see below), whose sum is σ = 24706560. Its totient is φ = 22235868.

The previous prime is 23471191. The next prime is 23471221. The reversal of 23471213 is 31217432.

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 23471213 - 2⁸ = 23470957 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 (23471233) 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, 617645 + ... + 617682.

It is an arithmetic number, because the mean of its divisors is an integer number (6176640).

Almost surely, 2^23471213 is an apocalyptic number.

It is an amenable number.

23471213 is a deficient number, since it is larger than the sum of its proper divisors (1235347).

23471213 is a wasteful number, since it uses less digits than its factorization.

23471213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1235346.

The product of its digits is 1008, while the sum is 23.

The square root of 23471213 is about 4844.7097952303. The cubic root of 23471213 is about 286.3157100154.

Adding to 23471213 its reverse (31217432), we get a palindrome (54688645).

The spelling of 23471213 in words is "twenty-three million, four hundred seventy-one thousand, two hundred thirteen".