538939 has 2 divisors, whose sum is σ = 538940. Its totient is φ = 538938.

The previous prime is 538931. The next prime is 538943. The reversal of 538939 is 939835.

538939 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 538939 - 2³ = 538931 is a prime.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 538898 and 538907.

It is not a weakly prime, because it can be changed into another prime (538931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 269469 + 269470.

It is an arithmetic number, because the mean of its divisors is an integer number (269470).

2⁵³⁸⁹³⁹ is an apocalyptic number.

538939 is a deficient number, since it is larger than the sum of its proper divisors (1).

538939 is an equidigital number, since it uses as much as digits as its factorization.

538939 is an evil number, because the sum of its binary digits is even.

The product of its digits is 29160, while the sum is 37.

The square root of 538939 is about 734.1246488165. The cubic root of 538939 is about 81.3791602502.

The spelling of 538939 in words is "five hundred thirty-eight thousand, nine hundred thirty-nine".