343558609 has 4 divisors (see below), whose sum is σ = 344495104. Its totient is φ = 342622116.

The previous prime is 343558603. The next prime is 343558619. The reversal of 343558609 is 906855343.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 343558609 - 2¹⁷ = 343427537 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (343558603) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 467697 + ... + 468430.

It is an arithmetic number, because the mean of its divisors is an integer number (86123776).

Almost surely, 2^343558609 is an apocalyptic number.

It is an amenable number.

343558609 is a deficient number, since it is larger than the sum of its proper divisors (936495).

343558609 is an equidigital number, since it uses as much as digits as its factorization.

343558609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 936494.

The product of its (nonzero) digits is 388800, while the sum is 43.

The square root of 343558609 is about 18535.3340676665. The cubic root of 343558609 is about 700.3798000165.

The spelling of 343558609 in words is "three hundred forty-three million, five hundred fifty-eight thousand, six hundred nine".