23788213 has 2 divisors, whose sum is σ = 23788214. Its totient is φ = 23788212.

The previous prime is 23788211. The next prime is 23788217. The reversal of 23788213 is 31288732.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17994564 + 5793649 = 4242^2 + 2407^2 .

It is a cyclic number.

It is not a de Polignac number, because 23788213 - 2¹ = 23788211 is a prime.

Together with 23788211, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23788211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11894106 + 11894107.

It is an arithmetic number, because the mean of its divisors is an integer number (11894107).

Almost surely, 2^23788213 is an apocalyptic number.

It is an amenable number.

23788213 is a deficient number, since it is larger than the sum of its proper divisors (1).

23788213 is an equidigital number, since it uses as much as digits as its factorization.

23788213 is an evil number, because the sum of its binary digits is even.

The product of its digits is 16128, while the sum is 34.

The square root of 23788213 is about 4877.3161677300. The cubic root of 23788213 is about 287.5989345707.

The spelling of 23788213 in words is "twenty-three million, seven hundred eighty-eight thousand, two hundred thirteen".