349717 has 2 divisors, whose sum is σ = 349718. Its totient is φ = 349716.

The previous prime is 349709. The next prime is 349729. The reversal of 349717 is 717943.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 194481 + 155236 = 441^2 + 394^2 .

It is a cyclic number.

It is not a de Polignac number, because 349717 - 2³ = 349709 is a prime.

349717 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (349787) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 174858 + 174859.

It is an arithmetic number, because the mean of its divisors is an integer number (174859).

2³⁴⁹⁷¹⁷ is an apocalyptic number.

It is an amenable number.

349717 is a deficient number, since it is larger than the sum of its proper divisors (1).

349717 is an equidigital number, since it uses as much as digits as its factorization.

349717 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5292, while the sum is 31.

The square root of 349717 is about 591.3687512881. The cubic root of 349717 is about 70.4539880510.

The spelling of 349717 in words is "three hundred forty-nine thousand, seven hundred seventeen".