343411399 has 2 divisors, whose sum is σ = 343411400. Its totient is φ = 343411398.

The previous prime is 343411357. The next prime is 343411427. The reversal of 343411399 is 993114343.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-343411399 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (343411699) 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, 171705699 + 171705700.

It is an arithmetic number, because the mean of its divisors is an integer number (171705700).

Almost surely, 2^343411399 is an apocalyptic number.

343411399 is a deficient number, since it is larger than the sum of its proper divisors (1).

343411399 is an equidigital number, since it uses as much as digits as its factorization.

343411399 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 34992, while the sum is 37.

The square root of 343411399 is about 18531.3625780729. The cubic root of 343411399 is about 700.2797514492.

The spelling of 343411399 in words is "three hundred forty-three million, four hundred eleven thousand, three hundred ninety-nine".