538835639 has 8 divisors (see below), whose sum is σ = 543203328. Its totient is φ = 534484440.

The previous prime is 538835599. The next prime is 538835657. The reversal of 538835639 is 936538835.

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 538835639 - 2²⁸ = 270400183 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 (538835039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66254 + ... + 73940.

It is an arithmetic number, because the mean of its divisors is an integer number (67900416).

Almost surely, 2^538835639 is an apocalyptic number.

538835639 is a deficient number, since it is larger than the sum of its proper divisors (4367689).

538835639 is a wasteful number, since it uses less digits than its factorization.

538835639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8245.

The product of its digits is 2332800, while the sum is 50.

The square root of 538835639 is about 23212.8334978735. The cubic root of 538835639 is about 813.7395745410.

The spelling of 538835639 in words is "five hundred thirty-eight million, eight hundred thirty-five thousand, six hundred thirty-nine".