38689 has 4 divisors (see below), whose sum is σ = 44224. Its totient is φ = 33156.

The previous prime is 38677. The next prime is 38693. The reversal of 38689 is 98683.

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: 98683 = 13 ⋅7591.

It is a cyclic number.

It is not a de Polignac number, because 38689 - 2⁷ = 38561 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (38609) 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, 2757 + ... + 2770.

It is an arithmetic number, because the mean of its divisors is an integer number (11056).

2³⁸⁶⁸⁹ is an apocalyptic number.

It is an amenable number.

38689 is a deficient number, since it is larger than the sum of its proper divisors (5535).

38689 is an equidigital number, since it uses as much as digits as its factorization.

38689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5534.

The product of its digits is 10368, while the sum is 34.

The square root of 38689 is about 196.6951956709. The cubic root of 38689 is about 33.8217312955.

It can be divided in two parts, 38 and 689, that added together give a palindrome (727).

The spelling of 38689 in words is "thirty-eight thousand, six hundred eighty-nine".