38939 has 4 divisors (see below), whose sum is σ = 40656. Its totient is φ = 37224.

The previous prime is 38933. The next prime is 38953. The reversal of 38939 is 93983.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 38939 - 2⁴ = 38923 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38933) 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, 824 + ... + 869.

It is an arithmetic number, because the mean of its divisors is an integer number (10164).

2³⁸⁹³⁹ is an apocalyptic number.

38939 is a deficient number, since it is larger than the sum of its proper divisors (1717).

38939 is a wasteful number, since it uses less digits than its factorization.

38939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1716.

The product of its digits is 5832, while the sum is 32.

The square root of 38939 is about 197.3296733895. The cubic root of 38939 is about 33.8944245289.

The spelling of 38939 in words is "thirty-eight thousand, nine hundred thirty-nine".