340999 has 2 divisors, whose sum is σ = 341000. Its totient is φ = 340998.

The previous prime is 340979. The next prime is 341017. The reversal of 340999 is 999043.

It is a strong prime.

It is an emirp because it is prime and its reverse (999043) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 340999 - 2¹⁷ = 209927 is a prime.

340999 is a modest number, since divided by 999 gives 340 as remainder.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (340909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 170499 + 170500.

It is an arithmetic number, because the mean of its divisors is an integer number (170500).

2³⁴⁰⁹⁹⁹ is an apocalyptic number.

340999 is a deficient number, since it is larger than the sum of its proper divisors (1).

340999 is an equidigital number, since it uses as much as digits as its factorization.

340999 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8748, while the sum is 34.

The square root of 340999 is about 583.9511965909. The cubic root of 340999 is about 69.8636119852.

The spelling of 340999 in words is "three hundred forty thousand, nine hundred ninety-nine".