23521367 has 2 divisors, whose sum is σ = 23521368. Its totient is φ = 23521366.

The previous prime is 23521361. The next prime is 23521369. The reversal of 23521367 is 76312532.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 23521367 - 2¹⁴ = 23504983 is a prime.

Together with 23521369, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23521361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11760683 + 11760684.

It is an arithmetic number, because the mean of its divisors is an integer number (11760684).

Almost surely, 2^23521367 is an apocalyptic number.

23521367 is a deficient number, since it is larger than the sum of its proper divisors (1).

23521367 is an equidigital number, since it uses as much as digits as its factorization.

23521367 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7560, while the sum is 29.

The square root of 23521367 is about 4849.8831944697. The cubic root of 23521367 is about 286.5195009605.

Adding to 23521367 its reverse (76312532), we get a palindrome (99833899).

The spelling of 23521367 in words is "twenty-three million, five hundred twenty-one thousand, three hundred sixty-seven".