204667387 has 8 divisors (see below), whose sum is σ = 211306752. Its totient is φ = 198086400.

The previous prime is 204667361. The next prime is 204667391. The reversal of 204667387 is 783766402.

It is a happy number.

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 204667387 - 2²³ = 196278779 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (204667327) 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, 7414 + ... + 21547.

It is an arithmetic number, because the mean of its divisors is an integer number (26413344).

Almost surely, 2^204667387 is an apocalyptic number.

204667387 is a deficient number, since it is larger than the sum of its proper divisors (6639365).

204667387 is a wasteful number, since it uses less digits than its factorization.

204667387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29189.

The product of its (nonzero) digits is 338688, while the sum is 43.

The square root of 204667387 is about 14306.2009981686. The cubic root of 204667387 is about 589.3177856271.

The spelling of 204667387 in words is "two hundred four million, six hundred sixty-seven thousand, three hundred eighty-seven".