539616289 has 4 divisors (see below), whose sum is σ = 539665200. Its totient is φ = 539567380.

The previous prime is 539616257. The next prime is 539616307. The reversal of 539616289 is 982616935.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 982616935 = 5 ⋅196523387.

It is a cyclic number.

It is not a de Polignac number, because 539616289 - 2⁵ = 539616257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (539616229) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 762 + ... + 32860.

It is an arithmetic number, because the mean of its divisors is an integer number (134916300).

Almost surely, 2^539616289 is an apocalyptic number.

It is an amenable number.

539616289 is a deficient number, since it is larger than the sum of its proper divisors (48911).

539616289 is a wasteful number, since it uses less digits than its factorization.

539616289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48910.

The product of its digits is 699840, while the sum is 49.

The square root of 539616289 is about 23229.6424638865. The cubic root of 539616289 is about 814.1323592940.

The spelling of 539616289 in words is "five hundred thirty-nine million, six hundred sixteen thousand, two hundred eighty-nine".