204214487 has 2 divisors, whose sum is σ = 204214488. Its totient is φ = 204214486.

The previous prime is 204214469. The next prime is 204214499. The reversal of 204214487 is 784412402.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-204214487 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (204214457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102107243 + 102107244.

It is an arithmetic number, because the mean of its divisors is an integer number (102107244).

Almost surely, 2^204214487 is an apocalyptic number.

204214487 is a deficient number, since it is larger than the sum of its proper divisors (1).

204214487 is an equidigital number, since it uses as much as digits as its factorization.

204214487 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14336, while the sum is 32.

The square root of 204214487 is about 14290.3634313477. The cubic root of 204214487 is about 588.8827722727.

Adding to 204214487 its reverse (784412402), we get a palindrome (988626889).

The spelling of 204214487 in words is "two hundred four million, two hundred fourteen thousand, four hundred eighty-seven".