343580869 has 2 divisors, whose sum is σ = 343580870. Its totient is φ = 343580868.

The previous prime is 343580813. The next prime is 343580873. The reversal of 343580869 is 968085343.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 278455969 + 65124900 = 16687^2 + 8070^2 .

It is an emirp because it is prime and its reverse (968085343) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-343580869 is a prime.

It is a super-2 number, since 2×343580869² = 236095627085590322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (343580269) 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, 171790434 + 171790435.

It is an arithmetic number, because the mean of its divisors is an integer number (171790435).

Almost surely, 2^343580869 is an apocalyptic number.

It is an amenable number.

343580869 is a deficient number, since it is larger than the sum of its proper divisors (1).

343580869 is an equidigital number, since it uses as much as digits as its factorization.

343580869 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 622080, while the sum is 46.

The square root of 343580869 is about 18535.9345326854. The cubic root of 343580869 is about 700.3949261282.

The spelling of 343580869 in words is "three hundred forty-three million, five hundred eighty thousand, eight hundred sixty-nine".