538659 has 12 divisors (see below), whose sum is σ = 848952. Its totient is φ = 326400.

The previous prime is 538651. The next prime is 538697. The reversal of 538659 is 956835.

It is not a de Polignac number, because 538659 - 2³ = 538651 is a prime.

It is not an unprimeable number, because it can be changed into a prime (538651) 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 11 ways as a sum of consecutive naturals, for example, 2622 + ... + 2819.

It is an arithmetic number, because the mean of its divisors is an integer number (70746).

2⁵³⁸⁶⁵⁹ is an apocalyptic number.

538659 is a deficient number, since it is larger than the sum of its proper divisors (310293).

538659 is a wasteful number, since it uses less digits than its factorization.

538659 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5458 (or 5455 counting only the distinct ones).

The product of its digits is 32400, while the sum is 36.

The square root of 538659 is about 733.9339207313. The cubic root of 538659 is about 81.3650645844.

It can be divided in two parts, 5386 and 59, that added together give a palindrome (5445).

The spelling of 538659 in words is "five hundred thirty-eight thousand, six hundred fifty-nine".