576999985 has 4 divisors (see below), whose sum is σ = 692399988. Its totient is φ = 461599984.

The previous prime is 576999959. The next prime is 576999991. The reversal of 576999985 is 589999675.

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

It can be written as a sum of positive squares in 2 ways, for example, as 414896161 + 162103824 = 20369^2 + 12732^2 .

It is a cyclic number.

It is not a de Polignac number, because 576999985 - 2⁹ = 576999473 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 576999985.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57699994 + ... + 57700003.

It is an arithmetic number, because the mean of its divisors is an integer number (173099997).

Almost surely, 2^576999985 is an apocalyptic number.

It is an amenable number.

576999985 is a deficient number, since it is larger than the sum of its proper divisors (115400003).

576999985 is a wasteful number, since it uses less digits than its factorization.

576999985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115400002.

The product of its digits is 55112400, while the sum is 67.

The square root of 576999985 is about 24020.8239866995. The cubic root of 576999985 is about 832.5147445137.

The spelling of 576999985 in words is "five hundred seventy-six million, nine hundred ninety-nine thousand, nine hundred eighty-five".