38217 has 4 divisors (see below), whose sum is σ = 50960. Its totient is φ = 25476.

The previous prime is 38201. The next prime is 38219. The reversal of 38217 is 71283.

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, and also an emirpimes, since its reverse is a distinct semiprime: 71283 = 3 ⋅23761.

It is not a de Polignac number, because 38217 - 2⁴ = 38201 is a prime.

It is a D-number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 38193 and 38202.

It is not an unprimeable number, because it can be changed into a prime (38219) 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, 6367 + ... + 6372.

It is an arithmetic number, because the mean of its divisors is an integer number (12740).

2³⁸²¹⁷ is an apocalyptic number.

It is an amenable number.

38217 is a deficient number, since it is larger than the sum of its proper divisors (12743).

38217 is a wasteful number, since it uses less digits than its factorization.

38217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12742.

The product of its digits is 336, while the sum is 21.

The square root of 38217 is about 195.4916878028. The cubic root of 38217 is about 33.6836281338.

It can be divided in two parts, 3821 and 7, that added together give a triangular number (3828 = T₈₇).

The spelling of 38217 in words is "thirty-eight thousand, two hundred seventeen".