340217 has 4 divisors (see below), whose sum is σ = 344400. Its totient is φ = 336036.

The previous prime is 340211. The next prime is 340237. The reversal of 340217 is 712043.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 712043 = 269 ⋅2647.

It is a cyclic number.

It is not a de Polignac number, because 340217 - 2⁴ = 340201 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 340195 and 340204.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 340217.

It is not an unprimeable number, because it can be changed into a prime (340211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1967 + ... + 2132.

It is an arithmetic number, because the mean of its divisors is an integer number (86100).

2³⁴⁰²¹⁷ is an apocalyptic number.

It is an amenable number.

340217 is a deficient number, since it is larger than the sum of its proper divisors (4183).

340217 is an equidigital number, since it uses as much as digits as its factorization.

340217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4182.

The product of its (nonzero) digits is 168, while the sum is 17.

The square root of 340217 is about 583.2812357688. The cubic root of 340217 is about 69.8101659235.

The spelling of 340217 in words is "three hundred forty thousand, two hundred seventeen", and thus it is an iban number.