343708769 has 2 divisors, whose sum is σ = 343708770. Its totient is φ = 343708768.

The previous prime is 343708759. The next prime is 343708789. The reversal of 343708769 is 967807343.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 298011169 + 45697600 = 17263^2 + 6760^2 .

It is a cyclic number.

It is not a de Polignac number, because 343708769 - 2⁴ = 343708753 is a prime.

It is a super-2 number, since 2×343708769² = 236271435774990722, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (343708759) 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, 171854384 + 171854385.

It is an arithmetic number, because the mean of its divisors is an integer number (171854385).

Almost surely, 2^343708769 is an apocalyptic number.

It is an amenable number.

343708769 is a deficient number, since it is larger than the sum of its proper divisors (1).

343708769 is an equidigital number, since it uses as much as digits as its factorization.

343708769 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 762048, while the sum is 47.

The square root of 343708769 is about 18539.3842670138. The cubic root of 343708769 is about 700.4818240570.

The spelling of 343708769 in words is "three hundred forty-three million, seven hundred eight thousand, seven hundred sixty-nine".