388539 has 12 divisors (see below), whose sum is σ = 585936. Its totient is φ = 247632.

The previous prime is 388529. The next prime is 388541. The reversal of 388539 is 935883.

It is not a de Polignac number, because 388539 - 2¹⁶ = 323003 is a prime.

It is not an unprimeable number, because it can be changed into a prime (388519) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 732 + ... + 1145.

It is an arithmetic number, because the mean of its divisors is an integer number (48828).

2³⁸⁸⁵³⁹ is an apocalyptic number.

388539 is a deficient number, since it is larger than the sum of its proper divisors (197397).

388539 is a wasteful number, since it uses less digits than its factorization.

388539 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1906 (or 1903 counting only the distinct ones).

The product of its digits is 25920, while the sum is 36.

The square root of 388539 is about 623.3289661166. The cubic root of 388539 is about 72.9700884523.

The spelling of 388539 in words is "three hundred eighty-eight thousand, five hundred thirty-nine".