204716397 has 8 divisors (see below), whose sum is σ = 289011456. Its totient is φ = 128449472.

The previous prime is 204716387. The next prime is 204716401. The reversal of 204716397 is 793617402.

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

It is a cyclic number.

It is not a de Polignac number, because 204716397 - 2¹² = 204712301 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204716377) 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, 2006973 + ... + 2007074.

It is an arithmetic number, because the mean of its divisors is an integer number (36126432).

Almost surely, 2^204716397 is an apocalyptic number.

It is an amenable number.

204716397 is a deficient number, since it is larger than the sum of its proper divisors (84295059).

204716397 is a wasteful number, since it uses less digits than its factorization.

204716397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4014067.

The product of its (nonzero) digits is 63504, while the sum is 39.

The square root of 204716397 is about 14307.9137892287. The cubic root of 204716397 is about 589.3648215521.

The spelling of 204716397 in words is "two hundred four million, seven hundred sixteen thousand, three hundred ninety-seven".