539385973 has 24 divisors (see below), whose sum is σ = 641901624. Its totient is φ = 451785600.

The previous prime is 539385953. The next prime is 539385997. The reversal of 539385973 is 379583935.

It can be written as a sum of positive squares in 4 ways, for example, as 1238769 + 538147204 = 1113^2 + 23198^2 .

It is not a de Polignac number, because 539385973 - 2²⁵ = 505831541 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 539385973.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (539385943) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 540511 + ... + 541507.

It is an arithmetic number, because the mean of its divisors is an integer number (26745901).

Almost surely, 2^539385973 is an apocalyptic number.

It is an amenable number.

539385973 is a deficient number, since it is larger than the sum of its proper divisors (102515651).

539385973 is a wasteful number, since it uses less digits than its factorization.

539385973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1253 (or 1246 counting only the distinct ones).

The product of its digits is 3061800, while the sum is 52.

The square root of 539385973 is about 23224.6845619052. The cubic root of 539385973 is about 814.0165150076.

The spelling of 539385973 in words is "five hundred thirty-nine million, three hundred eighty-five thousand, nine hundred seventy-three".