539998 has 8 divisors (see below), whose sum is σ = 820008. Its totient is φ = 266664.

The previous prime is 539993. The next prime is 540041. The reversal of 539998 is 899935.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (539993) by changing a digit.

539998 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 (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1461 + ... + 1792.

It is an arithmetic number, because the mean of its divisors is an integer number (102501).

2⁵³⁹⁹⁹⁸ is an apocalyptic number.

539998 is a deficient number, since it is larger than the sum of its proper divisors (280010).

539998 is a wasteful number, since it uses less digits than its factorization.

539998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3338.

The product of its digits is 87480, while the sum is 43.

The square root of 539998 is about 734.8455620061. The cubic root of 539998 is about 81.4324279637.

The spelling of 539998 in words is "five hundred thirty-nine thousand, nine hundred ninety-eight".