349323943 has 4 divisors (see below), whose sum is σ = 350018928. Its totient is φ = 348628960.

The previous prime is 349323913. The next prime is 349323967.

349323943 is nontrivially palindromic in base 10.

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 349323943 - 2⁹ = 349323431 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 349323896 and 349323905.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (349323913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 346738 + ... + 347743.

It is an arithmetic number, because the mean of its divisors is an integer number (87504732).

Almost surely, 2^349323943 is an apocalyptic number.

349323943 is a deficient number, since it is larger than the sum of its proper divisors (694985).

349323943 is an equidigital number, since it uses as much as digits as its factorization.

349323943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 694984.

The product of its digits is 209952, while the sum is 40.

The square root of 349323943 is about 18690.2098169068. The cubic root of 349323943 is about 704.2758306785.

The spelling of 349323943 in words is "three hundred forty-nine million, three hundred twenty-three thousand, nine hundred forty-three".