38705 has 4 divisors (see below), whose sum is σ = 46452. Its totient is φ = 30960.

The previous prime is 38699. The next prime is 38707. The reversal of 38705 is 50783.

38705 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 50783 = 43 ⋅1181.

It can be written as a sum of positive squares in 2 ways, for example, as 10816 + 27889 = 104^2 + 167^2 .

It is not a de Polignac number, because 38705 - 2⁸ = 38449 is a prime.

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

It is a Duffinian number.

It is a nialpdrome in base 16.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 38705.

It is not an unprimeable number, because it can be changed into a prime (38707) 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, 3866 + ... + 3875.

It is an arithmetic number, because the mean of its divisors is an integer number (11613).

2³⁸⁷⁰⁵ is an apocalyptic number.

It is an amenable number.

38705 is a deficient number, since it is larger than the sum of its proper divisors (7747).

38705 is an equidigital number, since it uses as much as digits as its factorization.

38705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7746.

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 38705 is about 196.7358635328. The cubic root of 38705 is about 33.8263930264.

The spelling of 38705 in words is "thirty-eight thousand, seven hundred five".