23682213 has 20 divisors (see below), whose sum is σ = 35964588. Its totient is φ = 15526080.

The previous prime is 23682193. The next prime is 23682223. The reversal of 23682213 is 31228632.

It can be written as a sum of positive squares in 2 ways, for example, as 9529569 + 14152644 = 3087^2 + 3762^2 .

It is not a de Polignac number, because 23682213 - 2⁵ = 23682181 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23682223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 2545 + ... + 7337.

Almost surely, 2^23682213 is an apocalyptic number.

It is an amenable number.

23682213 is a deficient number, since it is larger than the sum of its proper divisors (12282375).

23682213 is an equidigital number, since it uses as much as digits as its factorization.

23682213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4866 (or 4857 counting only the distinct ones).

The product of its digits is 3456, while the sum is 27.

The square root of 23682213 is about 4866.4374032756. The cubic root of 23682213 is about 287.1711193262.

The spelling of 23682213 in words is "twenty-three million, six hundred eighty-two thousand, two hundred thirteen".