23567 has 2 divisors, whose sum is σ = 23568.
Its totient is φ = 23566.
The previous prime is 23563. The next prime is 23581. The reversal of 23567 is 76532.
It can be divided in two parts, 23 and 567, that multiplied together give a triangular number (13041 = T161).
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 23567 - 22 = 23563 is a prime.
It is a plaindrome in base 10 and base 12.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (23561) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11783 + 11784.
It is an arithmetic number, because the mean of its divisors is an integer number (11784).
223567 is an apocalyptic number.
23567 is a deficient number, since it is larger than the sum of its proper divisors (1).
23567 is an equidigital number, since it uses as much as digits as its factorization.
23567 is an evil number, because the sum of its binary digits is even.
The product of its digits is 1260, while the sum is 23.
The square root of 23567 is about 153.5154715330.
The cubic root of 23567 is about 28.6704670161.
The spelling of 23567 in words is "twenty-three thousand, five hundred sixty-seven".