349847 has 4 divisors (see below), whose sum is σ = 368280. Its totient is φ = 331416.

The previous prime is 349841. The next prime is 349849. The reversal of 349847 is 748943.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 349847 - 2⁴ = 349831 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (349841) 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, 9188 + ... + 9225.

It is an arithmetic number, because the mean of its divisors is an integer number (92070).

2³⁴⁹⁸⁴⁷ is an apocalyptic number.

349847 is a deficient number, since it is larger than the sum of its proper divisors (18433).

349847 is a wasteful number, since it uses less digits than its factorization.

349847 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18432.

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

The square root of 349847 is about 591.4786555743. The cubic root of 349847 is about 70.4627169029.

The spelling of 349847 in words is "three hundred forty-nine thousand, eight hundred forty-seven".