539906 has 4 divisors (see below), whose sum is σ = 809862. Its totient is φ = 269952.

The previous prime is 539899. The next prime is 539921. The reversal of 539906 is 609935.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 434281 + 105625 = 659^2 + 325^2 .

It is a congruent number.

It is an unprimeable 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 as a sum of consecutive naturals, namely, 134975 + ... + 134978.

2⁵³⁹⁹⁰⁶ is an apocalyptic number.

539906 is a deficient number, since it is larger than the sum of its proper divisors (269956).

539906 is a wasteful number, since it uses less digits than its factorization.

539906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 269955.

The product of its (nonzero) digits is 7290, while the sum is 32.

The square root of 539906 is about 734.7829611525. The cubic root of 539906 is about 81.4278031263.

The spelling of 539906 in words is "five hundred thirty-nine thousand, nine hundred six".