349286243 has 2 divisors, whose sum is σ = 349286244. Its totient is φ = 349286242.

The previous prime is 349286227. The next prime is 349286251. The reversal of 349286243 is 342682943.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (342682943) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 349286243 - 2⁴ = 349286227 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 349286243.

It is not a weakly prime, because it can be changed into another prime (349286213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 174643121 + 174643122.

It is an arithmetic number, because the mean of its divisors is an integer number (174643122).

Almost surely, 2^349286243 is an apocalyptic number.

349286243 is a deficient number, since it is larger than the sum of its proper divisors (1).

349286243 is an equidigital number, since it uses as much as digits as its factorization.

349286243 is an evil number, because the sum of its binary digits is even.

The product of its digits is 248832, while the sum is 41.

The square root of 349286243 is about 18689.2012402885. The cubic root of 349286243 is about 704.2504939726.

The spelling of 349286243 in words is "three hundred forty-nine million, two hundred eighty-six thousand, two hundred forty-three".