204471417 has 4 divisors (see below), whose sum is σ = 272628560. Its totient is φ = 136314276.

The previous prime is 204471401. The next prime is 204471419. The reversal of 204471417 is 714174402.

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 not a de Polignac number, because 204471417 - 2⁴ = 204471401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (204471419) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34078567 + ... + 34078572.

It is an arithmetic number, because the mean of its divisors is an integer number (68157140).

Almost surely, 2^204471417 is an apocalyptic number.

It is an amenable number.

204471417 is a deficient number, since it is larger than the sum of its proper divisors (68157143).

204471417 is an equidigital number, since it uses as much as digits as its factorization.

204471417 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68157142.

The product of its (nonzero) digits is 6272, while the sum is 30.

The square root of 204471417 is about 14299.3502299930. The cubic root of 204471417 is about 589.1296340314.

The spelling of 204471417 in words is "two hundred four million, four hundred seventy-one thousand, four hundred seventeen".