349666943 has 2 divisors, whose sum is σ = 349666944. Its totient is φ = 349666942.

The previous prime is 349666921. The next prime is 349666963.

It is a happy number.

349666943 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 349666943 - 2¹² = 349662847 is a prime.

It is equal to p_18786479 and since 349666943 and 18786479 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 349666891 and 349666900.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (349666963) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 174833471 + 174833472.

It is an arithmetic number, because the mean of its divisors is an integer number (174833472).

Almost surely, 2^349666943 is an apocalyptic number.

349666943 is a deficient number, since it is larger than the sum of its proper divisors (1).

349666943 is an equidigital number, since it uses as much as digits as its factorization.

349666943 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2519424, while the sum is 50.

The square root of 349666943 is about 18699.3834925112. The cubic root of 349666943 is about 704.5062639610.

The spelling of 349666943 in words is "three hundred forty-nine million, six hundred sixty-six thousand, nine hundred forty-three".