343012387 has 2 divisors, whose sum is σ = 343012388. Its totient is φ = 343012386.

The previous prime is 343012331. The next prime is 343012393. The reversal of 343012387 is 783210343.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 343012387 - 2⁷ = 343012259 is a prime.

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 (343012487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 171506193 + 171506194.

It is an arithmetic number, because the mean of its divisors is an integer number (171506194).

Almost surely, 2^343012387 is an apocalyptic number.

343012387 is a deficient number, since it is larger than the sum of its proper divisors (1).

343012387 is an equidigital number, since it uses as much as digits as its factorization.

343012387 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12096, while the sum is 31.

The square root of 343012387 is about 18520.5935919992. The cubic root of 343012387 is about 700.0084264292.

The spelling of 343012387 in words is "three hundred forty-three million, twelve thousand, three hundred eighty-seven".