204672417 has 8 divisors (see below), whose sum is σ = 274571424. Its totient is φ = 135610848.

The previous prime is 204672409. The next prime is 204672431. The reversal of 204672417 is 714276402.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 204672417 - 2³ = 204672409 is a prime.

It is not an unprimeable number, because it can be changed into a prime (204672437) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 208788 + ... + 209765.

It is an arithmetic number, because the mean of its divisors is an integer number (34321428).

Almost surely, 2^204672417 is an apocalyptic number.

It is an amenable number.

204672417 is a deficient number, since it is larger than the sum of its proper divisors (69899007).

204672417 is a wasteful number, since it uses less digits than its factorization.

204672417 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 418719.

The product of its (nonzero) digits is 18816, while the sum is 33.

The square root of 204672417 is about 14306.3767949820. The cubic root of 204672417 is about 589.3226133694.

The spelling of 204672417 in words is "two hundred four million, six hundred seventy-two thousand, four hundred seventeen".