349286213 has 2 divisors, whose sum is σ = 349286214. Its totient is φ = 349286212.

The previous prime is 349286167. The next prime is 349286227. The reversal of 349286213 is 312682943.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 348680929 + 605284 = 18673^2 + 778^2 .

It is a cyclic number.

It is not a de Polignac number, because 349286213 - 2¹⁴ = 349269829 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (349286243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 174643106 + 174643107.

It is an arithmetic number, because the mean of its divisors is an integer number (174643107).

Almost surely, 2^349286213 is an apocalyptic number.

It is an amenable number.

349286213 is a deficient number, since it is larger than the sum of its proper divisors (1).

349286213 is an equidigital number, since it uses as much as digits as its factorization.

349286213 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 62208, while the sum is 38.

The square root of 349286213 is about 18689.2004376859. The cubic root of 349286213 is about 704.2504738100.

The spelling of 349286213 in words is "three hundred forty-nine million, two hundred eighty-six thousand, two hundred thirteen".