340607609 has 2 divisors, whose sum is σ = 340607610. Its totient is φ = 340607608.

The previous prime is 340607587. The next prime is 340607629. The reversal of 340607609 is 906706043.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 289170025 + 51437584 = 17005^2 + 7172^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-340607609 is a prime.

It is a Chen prime.

It is equal to p_18325691 and since 340607609 and 18325691 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (340607629) 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 as a sum of consecutive naturals, namely, 170303804 + 170303805.

It is an arithmetic number, because the mean of its divisors is an integer number (170303805).

Almost surely, 2^340607609 is an apocalyptic number.

It is an amenable number.

340607609 is a deficient number, since it is larger than the sum of its proper divisors (1).

340607609 is an equidigital number, since it uses as much as digits as its factorization.

340607609 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27216, while the sum is 35.

The square root of 340607609 is about 18455.5576724194. The cubic root of 340607609 is about 698.3687245686.

The spelling of 340607609 in words is "three hundred forty million, six hundred seven thousand, six hundred nine".