434407009 has 2 divisors, whose sum is σ = 434407010. Its totient is φ = 434407008.

The previous prime is 434406997. The next prime is 434407019. The reversal of 434407009 is 900704434.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 237622225 + 196784784 = 15415^2 + 14028^2 .

It is a cyclic number.

It is not a de Polignac number, because 434407009 - 2⁷ = 434406881 is a prime.

It is not a weakly prime, because it can be changed into another prime (434407019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 217203504 + 217203505.

It is an arithmetic number, because the mean of its divisors is an integer number (217203505).

Almost surely, 2^434407009 is an apocalyptic number.

It is an amenable number.

434407009 is a deficient number, since it is larger than the sum of its proper divisors (1).

434407009 is an equidigital number, since it uses as much as digits as its factorization.

434407009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12096, while the sum is 31.

The square root of 434407009 is about 20842.4328954179. The cubic root of 434407009 is about 757.3540309893.

The spelling of 434407009 in words is "four hundred thirty-four million, four hundred seven thousand, nine".