349718353 has 2 divisors, whose sum is σ = 349718354. Its totient is φ = 349718352.

The previous prime is 349718323. The next prime is 349718357. The reversal of 349718353 is 353817943.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 328769424 + 20948929 = 18132^2 + 4577^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-349718353 is a prime.

It is not a weakly prime, because it can be changed into another prime (349718357) 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 as a sum of consecutive naturals, namely, 174859176 + 174859177.

It is an arithmetic number, because the mean of its divisors is an integer number (174859177).

Almost surely, 2^349718353 is an apocalyptic number.

It is an amenable number.

349718353 is a deficient number, since it is larger than the sum of its proper divisors (1).

349718353 is an equidigital number, since it uses as much as digits as its factorization.

349718353 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 272160, while the sum is 43.

The square root of 349718353 is about 18700.7580862381. The cubic root of 349718353 is about 704.5407890931.

The spelling of 349718353 in words is "three hundred forty-nine million, seven hundred eighteen thousand, three hundred fifty-three".