539443705 has 4 divisors (see below), whose sum is σ = 647332452. Its totient is φ = 431554960.

The previous prime is 539443693. The next prime is 539443739. The reversal of 539443705 is 507344935.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 152967424 + 386476281 = 12368^2 + 19659^2 .

It is not a de Polignac number, because 539443705 - 2²¹ = 537346553 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53944366 + ... + 53944375.

It is an arithmetic number, because the mean of its divisors is an integer number (161833113).

Almost surely, 2^539443705 is an apocalyptic number.

It is an amenable number.

539443705 is a deficient number, since it is larger than the sum of its proper divisors (107888747).

539443705 is a wasteful number, since it uses less digits than its factorization.

539443705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107888746.

The product of its (nonzero) digits is 226800, while the sum is 40.

The square root of 539443705 is about 23225.9274303525. The cubic root of 539443705 is about 814.0455561317.

The spelling of 539443705 in words is "five hundred thirty-nine million, four hundred forty-three thousand, seven hundred five".