539918647 has 4 divisors (see below), whose sum is σ = 540041040. Its totient is φ = 539796256.

The previous prime is 539918597. The next prime is 539918651. The reversal of 539918647 is 746819935.

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 539918647 - 2²³ = 531530039 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 539918594 and 539918603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (539918047) 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, 54322 + ... + 63487.

It is an arithmetic number, because the mean of its divisors is an integer number (135010260).

Almost surely, 2^539918647 is an apocalyptic number.

539918647 is a deficient number, since it is larger than the sum of its proper divisors (122393).

539918647 is a wasteful number, since it uses less digits than its factorization.

539918647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122392.

The product of its digits is 1632960, while the sum is 52.

The square root of 539918647 is about 23236.1495734556. The cubic root of 539918647 is about 814.2843892180.

The spelling of 539918647 in words is "five hundred thirty-nine million, nine hundred eighteen thousand, six hundred forty-seven".