42317 has 4 divisors (see below), whose sum is σ = 46176. Its totient is φ = 38460.

The previous prime is 42307. The next prime is 42323. The reversal of 42317 is 71324.

It is a happy number.

42317 is nontrivially palindromic in base 5.

42317 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

42317 is an esthetic number in base 5, because in such base its adjacent digits differ by 1.

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 42317 - 2⁸ = 42061 is a prime.

It is an Ulam number.

It is a Duffinian number.

42317 is an undulating number in base 5.

It is a junction number, because it is equal to n+sod(n) for n = 42295 and 42304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42307) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1913 + ... + 1934.

It is an arithmetic number, because the mean of its divisors is an integer number (11544).

2⁴²³¹⁷ is an apocalyptic number.

It is an amenable number.

42317 is a deficient number, since it is larger than the sum of its proper divisors (3859).

42317 is a wasteful number, since it uses less digits than its factorization.

42317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3858.

The product of its digits is 168, while the sum is 17.

The square root of 42317 is about 205.7109622747. The cubic root of 42317 is about 34.8474997640.

The spelling of 42317 in words is "forty-two thousand, three hundred seventeen", and thus it is an iban number.