538706 has 24 divisors (see below), whose sum is σ = 984960. Its totient is φ = 219912.

The previous prime is 538697. The next prime is 538709. The reversal of 538706 is 607835.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (538709) by changing a digit.

538706 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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, 2135 + ... + 2373.

It is an arithmetic number, because the mean of its divisors is an integer number (41040).

2⁵³⁸⁷⁰⁶ is an apocalyptic number.

538706 is a deficient number, since it is larger than the sum of its proper divisors (446254).

538706 is a wasteful number, since it uses less digits than its factorization.

538706 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278 (or 271 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 538706 is about 733.9659392642. The cubic root of 538706 is about 81.3674309837.

The spelling of 538706 in words is "five hundred thirty-eight thousand, seven hundred six".