204986069 has 4 divisors (see below), whose sum is σ = 205020096. Its totient is φ = 204952044.

The previous prime is 204986063. The next prime is 204986071. The reversal of 204986069 is 960689402.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 204986069 - 2⁴ = 204986053 is a prime.

It is a super-2 number, since 2×204986069² = 84038576968145522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204986063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5279 + ... + 20924.

It is an arithmetic number, because the mean of its divisors is an integer number (51255024).

Almost surely, 2^204986069 is an apocalyptic number.

It is an amenable number.

204986069 is a deficient number, since it is larger than the sum of its proper divisors (34027).

204986069 is an equidigital number, since it uses as much as digits as its factorization.

204986069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34026.

The product of its (nonzero) digits is 186624, while the sum is 44.

The square root of 204986069 is about 14317.3345633885. The cubic root of 204986069 is about 589.6234972213.

The spelling of 204986069 in words is "two hundred four million, nine hundred eighty-six thousand, sixty-nine".