38785 has 4 divisors (see below), whose sum is σ = 46548. Its totient is φ = 31024.

The previous prime is 38783. The next prime is 38791. The reversal of 38785 is 58783.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 58783 = 29 ⋅2027.

It can be written as a sum of positive squares in 2 ways, for example, as 23409 + 15376 = 153^2 + 124^2 .

It is a cyclic number.

It is not a de Polignac number, because 38785 - 2¹ = 38783 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38783) 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, 3874 + ... + 3883.

It is an arithmetic number, because the mean of its divisors is an integer number (11637).

2³⁸⁷⁸⁵ is an apocalyptic number.

It is an amenable number.

38785 is a deficient number, since it is larger than the sum of its proper divisors (7763).

38785 is an equidigital number, since it uses as much as digits as its factorization.

38785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7762.

The product of its digits is 6720, while the sum is 31.

The square root of 38785 is about 196.9390768740. The cubic root of 38785 is about 33.8496824304.

It can be divided in two parts, 3878 and 5, that added together give a palindrome (3883).

The spelling of 38785 in words is "thirty-eight thousand, seven hundred eighty-five".