539784019 has 4 divisors (see below), whose sum is σ = 540052344. Its totient is φ = 539515696.

The previous prime is 539783999. The next prime is 539784029. The reversal of 539784019 is 910487935.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 539784019 - 2⁷ = 539783891 is a prime.

It is a super-2 number, since 2×539784019² = 582733574335584722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 539784019.

It is not an unprimeable number, because it can be changed into a prime (539784029) by changing a digit.

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, 131122 + ... + 135175.

It is an arithmetic number, because the mean of its divisors is an integer number (135013086).

Almost surely, 2^539784019 is an apocalyptic number.

539784019 is a deficient number, since it is larger than the sum of its proper divisors (268325).

539784019 is a wasteful number, since it uses less digits than its factorization.

539784019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 268324.

The product of its (nonzero) digits is 272160, while the sum is 46.

The square root of 539784019 is about 23233.2524412748. The cubic root of 539784019 is about 814.2167033470.

The spelling of 539784019 in words is "five hundred thirty-nine million, seven hundred eighty-four thousand, nineteen".