204321427 has 2 divisors, whose sum is σ = 204321428. Its totient is φ = 204321426.

The previous prime is 204321367. The next prime is 204321431. The reversal of 204321427 is 724123402.

It is a happy number.

204321427 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 204321427 - 2²³ = 195932819 is a prime.

It is not a weakly prime, because it can be changed into another prime (204322427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102160713 + 102160714.

It is an arithmetic number, because the mean of its divisors is an integer number (102160714).

Almost surely, 2^204321427 is an apocalyptic number.

204321427 is a deficient number, since it is larger than the sum of its proper divisors (1).

204321427 is an equidigital number, since it uses as much as digits as its factorization.

204321427 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2688, while the sum is 25.

The square root of 204321427 is about 14294.1046239350. The cubic root of 204321427 is about 588.9855467872.

Adding to 204321427 its reverse (724123402), we get a palindrome (928444829).

The spelling of 204321427 in words is "two hundred four million, three hundred twenty-one thousand, four hundred twenty-seven".