346304213 has 2 divisors, whose sum is σ = 346304214. Its totient is φ = 346304212.

The previous prime is 346304209. The next prime is 346304219. The reversal of 346304213 is 312403643.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 345885604 + 418609 = 18598^2 + 647^2 .

It is a cyclic number.

It is not a de Polignac number, because 346304213 - 2² = 346304209 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (346304219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 173152106 + 173152107.

It is an arithmetic number, because the mean of its divisors is an integer number (173152107).

Almost surely, 2^346304213 is an apocalyptic number.

It is an amenable number.

346304213 is a deficient number, since it is larger than the sum of its proper divisors (1).

346304213 is an equidigital number, since it uses as much as digits as its factorization.

346304213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 26.

The square root of 346304213 is about 18609.2507372006. The cubic root of 346304213 is about 702.2405845521.

Adding to 346304213 its reverse (312403643), we get a palindrome (658707856).

The spelling of 346304213 in words is "three hundred forty-six million, three hundred four thousand, two hundred thirteen".