22693 has 4 divisors (see below), whose sum is σ = 24768.
Its totient is φ = 20620.
The previous prime is 22691. The next prime is 22697. The reversal of 22693 is 39622.
22693 is nontrivially palindromic in base 8.
It is the 62-nd star number.
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 22693 - 21 = 22691 is a prime.
It is a Duffinian number.
It is a plaindrome in base 15.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (22691) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (7) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1021 + ... + 1042.
It is an arithmetic number, because the mean of its divisors is an integer number (6192).
222693 is an apocalyptic number.
It is an amenable number.
22693 is a deficient number, since it is larger than the sum of its proper divisors (2075).
22693 is a wasteful number, since it uses less digits than its factorization.
22693 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2074.
The product of its digits is 648, while the sum is 22.
The square root of 22693 is about 150.6419596261.
The cubic root of 22693 is about 28.3115711401.
The spelling of 22693 in words is "twenty-two thousand, six hundred ninety-three".