343954609 has 2 divisors, whose sum is σ = 343954610. Its totient is φ = 343954608.

The previous prime is 343954547. The next prime is 343954631. The reversal of 343954609 is 906459343.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 287404209 + 56550400 = 16953^2 + 7520^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-343954609 is a prime.

It is not a weakly prime, because it can be changed into another prime (343954679) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 171977304 + 171977305.

It is an arithmetic number, because the mean of its divisors is an integer number (171977305).

Almost surely, 2^343954609 is an apocalyptic number.

It is an amenable number.

343954609 is a deficient number, since it is larger than the sum of its proper divisors (1).

343954609 is an equidigital number, since it uses as much as digits as its factorization.

343954609 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 349920, while the sum is 43.

The square root of 343954609 is about 18546.0132912710. The cubic root of 343954609 is about 700.6487923610.

The spelling of 343954609 in words is "three hundred forty-three million, nine hundred fifty-four thousand, six hundred nine".