349784 has 16 divisors (see below), whose sum is σ = 684720. Its totient is φ = 167200.

The previous prime is 349759. The next prime is 349787. The reversal of 349784 is 487943.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 349784.

It is not an unprimeable number, because it can be changed into a prime (349787) by changing a digit.

349784 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 767 + ... + 1134.

It is an arithmetic number, because the mean of its divisors is an integer number (42795).

2³⁴⁹⁷⁸⁴ is an apocalyptic number.

It is an amenable number.

349784 is a deficient number, since it is larger than the sum of its proper divisors (334936).

349784 is a wasteful number, since it uses less digits than its factorization.

349784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1930 (or 1926 counting only the distinct ones).

The product of its digits is 24192, while the sum is 35.

The square root of 349784 is about 591.4253968169. The cubic root of 349784 is about 70.4584870371.

The spelling of 349784 in words is "three hundred forty-nine thousand, seven hundred eighty-four".