343429979 has 2 divisors, whose sum is σ = 343429980. Its totient is φ = 343429978.

The previous prime is 343429963. The next prime is 343430023. The reversal of 343429979 is 979924343.

It is a weak prime.

It is an emirp because it is prime and its reverse (979924343) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 343429979 - 2⁴ = 343429963 is a prime.

It is not a weakly prime, because it can be changed into another prime (343429909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 171714989 + 171714990.

It is an arithmetic number, because the mean of its divisors is an integer number (171714990).

Almost surely, 2^343429979 is an apocalyptic number.

343429979 is a deficient number, since it is larger than the sum of its proper divisors (1).

343429979 is an equidigital number, since it uses as much as digits as its factorization.

343429979 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1469664, while the sum is 50.

The square root of 343429979 is about 18531.8638835925. The cubic root of 343429979 is about 700.2923805807.

The spelling of 343429979 in words is "three hundred forty-three million, four hundred twenty-nine thousand, nine hundred seventy-nine".