204899769 has 6 divisors (see below), whose sum is σ = 295966346. Its totient is φ = 136599840.

The previous prime is 204899729. The next prime is 204899771. The reversal of 204899769 is 967998402.

204899769 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 only one way, i.e., 182574144 + 22325625 = 13512^2 + 4725^2 .

It is not a de Polignac number, because 204899769 - 2¹⁵ = 204867001 is a prime.

It is a super-2 number, since 2×204899769² = 83967830672506722, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (204899729) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11383312 + ... + 11383329.

Almost surely, 2^204899769 is an apocalyptic number.

It is an amenable number.

204899769 is a deficient number, since it is larger than the sum of its proper divisors (91066577).

204899769 is a wasteful number, since it uses less digits than its factorization.

204899769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22766647 (or 22766644 counting only the distinct ones).

The product of its (nonzero) digits is 1959552, while the sum is 54.

The square root of 204899769 is about 14314.3204169810. The cubic root of 204899769 is about 589.5407409465.

The spelling of 204899769 in words is "two hundred four million, eight hundred ninety-nine thousand, seven hundred sixty-nine".