343850387 has 2 divisors, whose sum is σ = 343850388. Its totient is φ = 343850386.

The previous prime is 343850329. The next prime is 343850389. The reversal of 343850387 is 783058343.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 343850387 - 2¹⁸ = 343588243 is a prime.

Together with 343850389, it forms a pair of twin primes.

It is a Chen prime.

It is an alternating number because its digits alternate between odd and even.

It is not a weakly prime, because it can be changed into another prime (343850389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 171925193 + 171925194.

It is an arithmetic number, because the mean of its divisors is an integer number (171925194).

Almost surely, 2^343850387 is an apocalyptic number.

343850387 is a deficient number, since it is larger than the sum of its proper divisors (1).

343850387 is an equidigital number, since it uses as much as digits as its factorization.

343850387 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 241920, while the sum is 41.

The square root of 343850387 is about 18543.2032561799. The cubic root of 343850387 is about 700.5780171353.

The spelling of 343850387 in words is "three hundred forty-three million, eight hundred fifty thousand, three hundred eighty-seven".