204934487 has 2 divisors, whose sum is σ = 204934488. Its totient is φ = 204934486.

The previous prime is 204934463. The next prime is 204934489. The reversal of 204934487 is 784439402.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 204934487 - 2⁶ = 204934423 is a prime.

Together with 204934489, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (204934489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102467243 + 102467244.

It is an arithmetic number, because the mean of its divisors is an integer number (102467244).

Almost surely, 2^204934487 is an apocalyptic number.

204934487 is a deficient number, since it is larger than the sum of its proper divisors (1).

204934487 is an equidigital number, since it uses as much as digits as its factorization.

204934487 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 193536, while the sum is 41.

The square root of 204934487 is about 14315.5330672665. The cubic root of 204934487 is about 589.5740361192.

The spelling of 204934487 in words is "two hundred four million, nine hundred thirty-four thousand, four hundred eighty-seven".