343435009 has 2 divisors, whose sum is σ = 343435010. Its totient is φ = 343435008.

The previous prime is 343434991. The next prime is 343435031. The reversal of 343435009 is 900534343.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 343286784 + 148225 = 18528^2 + 385^2 .

It is a cyclic number.

It is not a de Polignac number, because 343435009 - 2¹⁷ = 343303937 is a prime.

It is not a weakly prime, because it can be changed into another prime (343435409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 171717504 + 171717505.

It is an arithmetic number, because the mean of its divisors is an integer number (171717505).

Almost surely, 2^343435009 is an apocalyptic number.

It is an amenable number.

343435009 is a deficient number, since it is larger than the sum of its proper divisors (1).

343435009 is an equidigital number, since it uses as much as digits as its factorization.

343435009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 19440, while the sum is 31.

The square root of 343435009 is about 18531.9995952946. Note that the first 3 decimals coincide. The cubic root of 343435009 is about 700.2957994760.

The spelling of 343435009 in words is "three hundred forty-three million, four hundred thirty-five thousand, nine".