204630685 has 8 divisors (see below), whose sum is σ = 280636416. Its totient is φ = 140318160.

The previous prime is 204630637. The next prime is 204630707. The reversal of 204630685 is 586036402.

It is a happy number.

204630685 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 204630685 - 2⁷ = 204630557 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 204630685.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2923261 + ... + 2923330.

It is an arithmetic number, because the mean of its divisors is an integer number (35079552).

Almost surely, 2^204630685 is an apocalyptic number.

It is an amenable number.

204630685 is a deficient number, since it is larger than the sum of its proper divisors (76005731).

204630685 is an equidigital number, since it uses as much as digits as its factorization.

204630685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5846603.

The product of its (nonzero) digits is 34560, while the sum is 34.

The square root of 204630685 is about 14304.9182101821. The cubic root of 204630685 is about 589.2825570306.

The spelling of 204630685 in words is "two hundred four million, six hundred thirty thousand, six hundred eighty-five".