568404539 has 4 divisors (see below), whose sum is σ = 568549920. Its totient is φ = 568259160.

The previous prime is 568404533. The next prime is 568404541. The reversal of 568404539 is 935404865.

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 568404539 - 2²⁰ = 567355963 is a prime.

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 568404539.

It is not an unprimeable number, because it can be changed into a prime (568404533) 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, 66659 + ... + 74700.

It is an arithmetic number, because the mean of its divisors is an integer number (142137480).

Almost surely, 2^568404539 is an apocalyptic number.

568404539 is a deficient number, since it is larger than the sum of its proper divisors (145381).

568404539 is a wasteful number, since it uses less digits than its factorization.

568404539 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145380.

The product of its (nonzero) digits is 518400, while the sum is 44.

The square root of 568404539 is about 23841.2361046989. The cubic root of 568404539 is about 828.3601138218.

The spelling of 568404539 in words is "five hundred sixty-eight million, four hundred four thousand, five hundred thirty-nine".