22317 has 8 divisors (see below), whose sum is σ = 30624. Its totient is φ = 14448.

The previous prime is 22307. The next prime is 22343. The reversal of 22317 is 71322.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 22317 - 2⁷ = 22189 is a prime.

It is a super-3 number, since 3×22317³ = 33344844387039, which contains 333 as substring.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 22296 and 22305.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22307) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43 + ... + 215.

It is an arithmetic number, because the mean of its divisors is an integer number (3828).

2²²³¹⁷ is an apocalyptic number.

It is an amenable number.

22317 is a deficient number, since it is larger than the sum of its proper divisors (8307).

22317 is a wasteful number, since it uses less digits than its factorization.

22317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219.

The product of its digits is 84, while the sum is 15.

The square root of 22317 is about 149.3887545969. The cubic root of 22317 is about 28.1543348248.

Adding to 22317 its reverse (71322), we get a palindrome (93639).

The spelling of 22317 in words is "twenty-two thousand, three hundred seventeen", and thus it is an iban number.