344211709 has 2 divisors, whose sum is σ = 344211710. Its totient is φ = 344211708.

The previous prime is 344211671. The next prime is 344211719. The reversal of 344211709 is 907112443.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 329604025 + 14607684 = 18155^2 + 3822^2 .

It is an emirp because it is prime and its reverse (907112443) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 344211709 - 2¹⁷ = 344080637 is a prime.

It is a super-2 number, since 2×344211709² = 236963401225401362, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (344211719) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172105854 + 172105855.

It is an arithmetic number, because the mean of its divisors is an integer number (172105855).

Almost surely, 2^344211709 is an apocalyptic number.

It is an amenable number.

344211709 is a deficient number, since it is larger than the sum of its proper divisors (1).

344211709 is an equidigital number, since it uses as much as digits as its factorization.

344211709 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 344211709 is about 18552.9434052929. The cubic root of 344211709 is about 700.8233230844.

It can be divided in two parts, 3442 and 11709, that added together give a palindrome (15151).

The spelling of 344211709 in words is "three hundred forty-four million, two hundred eleven thousand, seven hundred nine".