204084569 has 12 divisors (see below), whose sum is σ = 222171516. Its totient is φ = 187379712.

The previous prime is 204084547. The next prime is 204084583. The reversal of 204084569 is 965480402.

It can be written as a sum of positive squares in 6 ways, for example, as 6822544 + 197262025 = 2612^2 + 14045^2 .

It is not a de Polignac number, because 204084569 - 2¹² = 204080473 is a prime.

It is a super-2 number, since 2×204084569² = 83301022607831522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (204084469) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 29489 + ... + 35745.

It is an arithmetic number, because the mean of its divisors is an integer number (18514293).

Almost surely, 2^204084569 is an apocalyptic number.

It is an amenable number.

204084569 is a deficient number, since it is larger than the sum of its proper divisors (18086947).

204084569 is a wasteful number, since it uses less digits than its factorization.

204084569 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6476 (or 6463 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 38.

The square root of 204084569 is about 14285.8170574875. The cubic root of 204084569 is about 588.7578665051.

The spelling of 204084569 in words is "two hundred four million, eighty-four thousand, five hundred sixty-nine".