804386129 has 2 divisors, whose sum is σ = 804386130. Its totient is φ = 804386128.

The previous prime is 804386111. The next prime is 804386221. The reversal of 804386129 is 921683408.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 764633104 + 39753025 = 27652^2 + 6305^2 .

It is a cyclic number.

It is not a de Polignac number, because 804386129 - 2⁸ = 804385873 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (804386629) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 402193064 + 402193065.

It is an arithmetic number, because the mean of its divisors is an integer number (402193065).

Almost surely, 2^804386129 is an apocalyptic number.

It is an amenable number.

804386129 is a deficient number, since it is larger than the sum of its proper divisors (1).

804386129 is an equidigital number, since it uses as much as digits as its factorization.

804386129 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 82944, while the sum is 41.

The square root of 804386129 is about 28361.7018001389. The cubic root of 804386129 is about 930.0112262105.

The spelling of 804386129 in words is "eight hundred four million, three hundred eighty-six thousand, one hundred twenty-nine".