538605 has 12 divisors (see below), whose sum is σ = 933660. Its totient is φ = 287232.

The previous prime is 538597. The next prime is 538621. The reversal of 538605 is 506835.

538605 is a `hidden beast` number, since 53 + 8 + 605 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 110889 + 427716 = 333^2 + 654^2 .

It is not a de Polignac number, because 538605 - 2³ = 538597 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5940 + ... + 6029.

It is an arithmetic number, because the mean of its divisors is an integer number (77805).

2⁵³⁸⁶⁰⁵ is an apocalyptic number.

It is an amenable number.

538605 is a deficient number, since it is larger than the sum of its proper divisors (395055).

538605 is a wasteful number, since it uses less digits than its factorization.

538605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11980 (or 11977 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 538605 is about 733.8971317562. The cubic root of 538605 is about 81.3623455727.

The spelling of 538605 in words is "five hundred thirty-eight thousand, six hundred five".