204486387 has 16 divisors (see below), whose sum is σ = 329928192. Its totient is φ = 109975680.

The previous prime is 204486361. The next prime is 204486409. The reversal of 204486387 is 783684402.

204486387 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 204486387 - 2⁸ = 204486131 is a prime.

It is not an unprimeable number, because it can be changed into a prime (204486287) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 286039 + ... + 286752.

It is an arithmetic number, because the mean of its divisors is an integer number (20620512).

Almost surely, 2^204486387 is an apocalyptic number.

204486387 is a deficient number, since it is larger than the sum of its proper divisors (125441805).

204486387 is a wasteful number, since it uses less digits than its factorization.

204486387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 572818.

The product of its (nonzero) digits is 258048, while the sum is 42.

The square root of 204486387 is about 14299.8736707707. The cubic root of 204486387 is about 589.1440110293.

It can be divided in two parts, 204 and 486387, that added together give a triangular number (486591 = T₉₈₆).

The spelling of 204486387 in words is "two hundred four million, four hundred eighty-six thousand, three hundred eighty-seven".