204776213 has 8 divisors (see below), whose sum is σ = 206739000. Its totient is φ = 202821568.

The previous prime is 204776177. The next prime is 204776219. The reversal of 204776213 is 312677402.

It can be written as a sum of positive squares in 4 ways, for example, as 8720209 + 196056004 = 2953^2 + 14002^2 .

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 204776213 - 2⁸ = 204775957 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 204776213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204776219) 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, 56195 + ... + 59727.

It is an arithmetic number, because the mean of its divisors is an integer number (25842375).

Almost surely, 2^204776213 is an apocalyptic number.

It is an amenable number.

204776213 is a deficient number, since it is larger than the sum of its proper divisors (1962787).

204776213 is a wasteful number, since it uses less digits than its factorization.

204776213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4071.

The product of its (nonzero) digits is 14112, while the sum is 32.

The square root of 204776213 is about 14310.0039482874. The cubic root of 204776213 is about 589.4222180506.

The spelling of 204776213 in words is "two hundred four million, seven hundred seventy-six thousand, two hundred thirteen".