204609695 has 16 divisors (see below), whose sum is σ = 252739872. Its totient is φ = 158928000.

The previous prime is 204609661. The next prime is 204609697. The reversal of 204609695 is 596906402.

It is not a de Polignac number, because 204609695 - 2¹⁰ = 204608671 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204609697) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34445 + ... + 39945.

It is an arithmetic number, because the mean of its divisors is an integer number (15796242).

Almost surely, 2^204609695 is an apocalyptic number.

204609695 is a deficient number, since it is larger than the sum of its proper divisors (48130177).

204609695 is a wasteful number, since it uses less digits than its factorization.

204609695 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5722.

The product of its (nonzero) digits is 116640, while the sum is 41.

The square root of 204609695 is about 14304.1845276129. The cubic root of 204609695 is about 589.2624077817.

The spelling of 204609695 in words is "two hundred four million, six hundred nine thousand, six hundred ninety-five".