349371317 has 2 divisors, whose sum is σ = 349371318. Its totient is φ = 349371316.

The previous prime is 349371313. The next prime is 349371343. The reversal of 349371317 is 713173943.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 323064676 + 26306641 = 17974^2 + 5129^2 .

It is a cyclic number.

It is not a de Polignac number, because 349371317 - 2² = 349371313 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (349371313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 174685658 + 174685659.

It is an arithmetic number, because the mean of its divisors is an integer number (174685659).

Almost surely, 2^349371317 is an apocalyptic number.

It is an amenable number.

349371317 is a deficient number, since it is larger than the sum of its proper divisors (1).

349371317 is an equidigital number, since it uses as much as digits as its factorization.

349371317 is an evil number, because the sum of its binary digits is even.

The product of its digits is 47628, while the sum is 38.

The square root of 349371317 is about 18691.4771219398. The cubic root of 349371317 is about 704.3076663196.

The spelling of 349371317 in words is "three hundred forty-nine million, three hundred seventy-one thousand, three hundred seventeen".