204516986 has 8 divisors (see below), whose sum is σ = 307137684. Its totient is φ = 102137760.

The previous prime is 204516973. The next prime is 204516997. The reversal of 204516986 is 689615402.

It is a happy number.

204516986 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 203946961 + 570025 = 14281^2 + 755^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 58235 + ... + 61646.

Almost surely, 2^204516986 is an apocalyptic number.

204516986 is a deficient number, since it is larger than the sum of its proper divisors (102620698).

204516986 is a wasteful number, since it uses less digits than its factorization.

204516986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120736.

The product of its (nonzero) digits is 103680, while the sum is 41.

The square root of 204516986 is about 14300.9435353056. The cubic root of 204516986 is about 589.1733957376.

It can be divided in two parts, 204516 and 986, that added together give a palindrome (205502).

The spelling of 204516986 in words is "two hundred four million, five hundred sixteen thousand, nine hundred eighty-six".