204866429 has 2 divisors, whose sum is σ = 204866430. Its totient is φ = 204866428.

The previous prime is 204866413. The next prime is 204866443. The reversal of 204866429 is 924668402.

204866429 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 can be written as a sum of positive squares in only one way, i.e., 204547204 + 319225 = 14302^2 + 565^2 .

It is a cyclic number.

It is not a de Polignac number, because 204866429 - 2⁴ = 204866413 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (204866729) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102433214 + 102433215.

It is an arithmetic number, because the mean of its divisors is an integer number (102433215).

Almost surely, 2^204866429 is an apocalyptic number.

It is an amenable number.

204866429 is a deficient number, since it is larger than the sum of its proper divisors (1).

204866429 is an equidigital number, since it uses as much as digits as its factorization.

204866429 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 165888, while the sum is 41.

The square root of 204866429 is about 14313.1558015694. The cubic root of 204866429 is about 589.5087637599.

The spelling of 204866429 in words is "two hundred four million, eight hundred sixty-six thousand, four hundred twenty-nine".