539021739 has 8 divisors (see below), whose sum is σ = 718829712. Its totient is φ = 359280800.

The previous prime is 539021731. The next prime is 539021741. The reversal of 539021739 is 937120935.

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

It is a cyclic number.

It is not a de Polignac number, because 539021739 - 2³ = 539021731 is a prime.

It is a super-2 number, since 2×539021739² = 581088870229168242, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 539021697 and 539021706.

It is not an unprimeable number, because it can be changed into a prime (539021731) 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 7 ways as a sum of consecutive naturals, for example, 6697 + ... + 33509.

It is an arithmetic number, because the mean of its divisors is an integer number (89853714).

Almost surely, 2^539021739 is an apocalyptic number.

539021739 is a deficient number, since it is larger than the sum of its proper divisors (179807973).

539021739 is a wasteful number, since it uses less digits than its factorization.

539021739 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33517.

The product of its (nonzero) digits is 51030, while the sum is 39.

The square root of 539021739 is about 23216.8417102758. The cubic root of 539021739 is about 813.8332453459.

The spelling of 539021739 in words is "five hundred thirty-nine million, twenty-one thousand, seven hundred thirty-nine".