204868197 has 12 divisors (see below), whose sum is σ = 306881120. Its totient is φ = 136578636.

The previous prime is 204868187. The next prime is 204868231. The reversal of 204868197 is 791868402.

204868197 is a `hidden beast` number, since 2 + 0 + 486 + 81 + 97 = 666.

It is not a de Polignac number, because 204868197 - 2¹¹ = 204866149 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 (204868117) 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, 421297 + ... + 421782.

Almost surely, 2^204868197 is an apocalyptic number.

204868197 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

It is an amenable number.

204868197 is a deficient number, since it is larger than the sum of its proper divisors (102012923).

204868197 is an frugal number, since it uses more digits than its factorization.

204868197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 843094 (or 843082 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 45.

The square root of 204868197 is about 14313.2175627984. The cubic root of 204868197 is about 589.5104595778.

The spelling of 204868197 in words is "two hundred four million, eight hundred sixty-eight thousand, one hundred ninety-seven".