343787 has 2 divisors, whose sum is σ = 343788. Its totient is φ = 343786.

The previous prime is 343771. The next prime is 343799. The reversal of 343787 is 787343.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 343787 - 2⁴ = 343771 is a prime.

It is a Chen prime.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 343787.

It is not a weakly prime, because it can be changed into another prime (343727) 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, 171893 + 171894.

It is an arithmetic number, because the mean of its divisors is an integer number (171894).

2³⁴³⁷⁸⁷ is an apocalyptic number.

343787 is a deficient number, since it is larger than the sum of its proper divisors (1).

343787 is an equidigital number, since it uses as much as digits as its factorization.

343787 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 14112, while the sum is 32.

The square root of 343787 is about 586.3335228349. Note that the first 3 decimals coincide. The cubic root of 343787 is about 70.0534965206.

Subtracting 343787 from its reverse (787343), we obtain a square (443556 = 666²).

The spelling of 343787 in words is "three hundred forty-three thousand, seven hundred eighty-seven".