346226609 has 2 divisors, whose sum is σ = 346226610. Its totient is φ = 346226608.

The previous prime is 346226597. The next prime is 346226623. The reversal of 346226609 is 906622643.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 311416609 + 34810000 = 17647^2 + 5900^2 .

It is a cyclic number.

It is not a de Polignac number, because 346226609 - 2⁴ = 346226593 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (346228609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 173113304 + 173113305.

It is an arithmetic number, because the mean of its divisors is an integer number (173113305).

Almost surely, 2^346226609 is an apocalyptic number.

It is an amenable number.

346226609 is a deficient number, since it is larger than the sum of its proper divisors (1).

346226609 is an equidigital number, since it uses as much as digits as its factorization.

346226609 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 93312, while the sum is 38.

The square root of 346226609 is about 18607.1655283657. The cubic root of 346226609 is about 702.1881251368.

The spelling of 346226609 in words is "three hundred forty-six million, two hundred twenty-six thousand, six hundred nine".