539973 has 16 divisors (see below), whose sum is σ = 914560. Its totient is φ = 308448.

The previous prime is 539947. The next prime is 539993. The reversal of 539973 is 379935.

It is not a de Polignac number, because 539973 - 2¹⁶ = 474437 is a prime.

It is a Duffinian number.

It is a congruent number.

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

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1240 + ... + 1617.

It is an arithmetic number, because the mean of its divisors is an integer number (57160).

2⁵³⁹⁹⁷³ is an apocalyptic number.

It is an amenable number.

539973 is a deficient number, since it is larger than the sum of its proper divisors (374587).

539973 is a wasteful number, since it uses less digits than its factorization.

539973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2873 (or 2867 counting only the distinct ones).

The product of its digits is 25515, while the sum is 36.

The square root of 539973 is about 734.8285514322. The cubic root of 539973 is about 81.4311712664.

The spelling of 539973 in words is "five hundred thirty-nine thousand, nine hundred seventy-three".