204986879 has 8 divisors (see below), whose sum is σ = 215319552. Its totient is φ = 194772600.

The previous prime is 204986863. The next prime is 204986897. The reversal of 204986879 is 978689402.

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 204986879 - 2⁴ = 204986863 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 204986879.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204986809) 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, 26039 + ... + 32984.

It is an arithmetic number, because the mean of its divisors is an integer number (26914944).

Almost surely, 2^204986879 is an apocalyptic number.

204986879 is a deficient number, since it is larger than the sum of its proper divisors (10332673).

204986879 is a wasteful number, since it uses less digits than its factorization.

204986879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59197.

The product of its (nonzero) digits is 1741824, while the sum is 53.

The square root of 204986879 is about 14317.3628507487. The cubic root of 204986879 is about 589.6242738503.

The spelling of 204986879 in words is "two hundred four million, nine hundred eighty-six thousand, eight hundred seventy-nine".