349747943 has 2 divisors, whose sum is σ = 349747944. Its totient is φ = 349747942.

The previous prime is 349747889. The next prime is 349747949.

It is a happy number.

349747943 is nontrivially palindromic in base 10.

It is a strong prime.

It is a palprime.

It is a cyclic number.

It is not a de Polignac number, because 349747943 - 2¹⁰ = 349746919 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 349747891 and 349747900.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (349747949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 174873971 + 174873972.

It is an arithmetic number, because the mean of its divisors is an integer number (174873972).

Almost surely, 2^349747943 is an apocalyptic number.

349747943 is a deficient number, since it is larger than the sum of its proper divisors (1).

349747943 is an equidigital number, since it uses as much as digits as its factorization.

349747943 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2286144, while the sum is 50.

The square root of 349747943 is about 18701.5492139020. The cubic root of 349747943 is about 704.5606591531.

The spelling of 349747943 in words is "three hundred forty-nine million, seven hundred forty-seven thousand, nine hundred forty-three".