8939 has 4 divisors (see below), whose sum is σ = 10224. Its totient is φ = 7656.

The previous prime is 8933. The next prime is 8941. The reversal of 8939 is 9398.

8939 = T₄₇ + T₄₈ + ... + T₅₃.

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 8939 - 2⁴ = 8923 is a prime.

It is a Duffinian number.

It is a plaindrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (8933) 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, 632 + ... + 645.

It is an arithmetic number, because the mean of its divisors is an integer number (2556).

8939 is a deficient number, since it is larger than the sum of its proper divisors (1285).

8939 is a wasteful number, since it uses less digits than its factorization.

8939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1284.

The product of its digits is 1944, while the sum is 29.

The square root of 8939 is about 94.5462849614. The cubic root of 8939 is about 20.7537371698.

It can be divided in two parts, 89 and 39, that added together give a 7-th power (128 = 2⁷).

The spelling of 8939 in words is "eight thousand, nine hundred thirty-nine".