350405009 has 2 divisors, whose sum is σ = 350405010. Its totient is φ = 350405008.

The previous prime is 350404993. The next prime is 350405017. The reversal of 350405009 is 900504053.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 267649600 + 82755409 = 16360^2 + 9097^2 .

It is a cyclic number.

It is not a de Polignac number, because 350405009 - 2⁴ = 350404993 is a prime.

It is not a weakly prime, because it can be changed into another prime (350405039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 175202504 + 175202505.

It is an arithmetic number, because the mean of its divisors is an integer number (175202505).

Almost surely, 2^350405009 is an apocalyptic number.

It is an amenable number.

350405009 is a deficient number, since it is larger than the sum of its proper divisors (1).

350405009 is an equidigital number, since it uses as much as digits as its factorization.

350405009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2700, while the sum is 26.

The square root of 350405009 is about 18719.1081251218. The cubic root of 350405009 is about 705.0015988428.

The spelling of 350405009 in words is "three hundred fifty million, four hundred five thousand, nine".