343204009 has 4 divisors (see below), whose sum is σ = 355038660. Its totient is φ = 331369360.

The previous prime is 343203983. The next prime is 343204019. The reversal of 343204009 is 900402343.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 147987225 + 195216784 = 12165^2 + 13972^2 .

It is a cyclic number.

It is not a de Polignac number, because 343204009 - 2⁵ = 343203977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (343204019) 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 in 3 ways as a sum of consecutive naturals, for example, 5917282 + ... + 5917339.

It is an arithmetic number, because the mean of its divisors is an integer number (88759665).

Almost surely, 2^343204009 is an apocalyptic number.

It is an amenable number.

343204009 is a deficient number, since it is larger than the sum of its proper divisors (11834651).

343204009 is a wasteful number, since it uses less digits than its factorization.

343204009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11834650.

The product of its (nonzero) digits is 2592, while the sum is 25.

The square root of 343204009 is about 18525.7660840247. The cubic root of 343204009 is about 700.1387541270.

The spelling of 343204009 in words is "three hundred forty-three million, two hundred four thousand, nine".