340717 has 4 divisors (see below), whose sum is σ = 366940. Its totient is φ = 314496.

The previous prime is 340709. The next prime is 340723. The reversal of 340717 is 717043.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 717043 = 17 ⋅42179.

It can be written as a sum of positive squares in 2 ways, for example, as 84681 + 256036 = 291^2 + 506^2 .

It is not a de Polignac number, because 340717 - 2³ = 340709 is a prime.

It is an Ulam number.

It is a Duffinian number.

340717 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (340757) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13092 + ... + 13117.

It is an arithmetic number, because the mean of its divisors is an integer number (91735).

2³⁴⁰⁷¹⁷ is an apocalyptic number.

It is an amenable number.

340717 is a deficient number, since it is larger than the sum of its proper divisors (26223).

340717 is a wasteful number, since it uses less digits than its factorization.

340717 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26222.

The product of its (nonzero) digits is 588, while the sum is 22.

The square root of 340717 is about 583.7096881156. The cubic root of 340717 is about 69.8443480264.

The spelling of 340717 in words is "three hundred forty thousand, seven hundred seventeen", and thus it is an iban number.