212343347 has 2 divisors, whose sum is σ = 212343348. Its totient is φ = 212343346.

The previous prime is 212343317. The next prime is 212343353. The reversal of 212343347 is 743343212.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 212343347 - 2⁶ = 212343283 is a prime.

It is not a weakly prime, because it can be changed into another prime (212343317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106171673 + 106171674.

It is an arithmetic number, because the mean of its divisors is an integer number (106171674).

Almost surely, 2^212343347 is an apocalyptic number.

212343347 is a deficient number, since it is larger than the sum of its proper divisors (1).

212343347 is an equidigital number, since it uses as much as digits as its factorization.

212343347 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12096, while the sum is 29.

The square root of 212343347 is about 14572.0055929169. The cubic root of 212343347 is about 596.5949224863.

Adding to 212343347 its reverse (743343212), we get a palindrome (955686559).

The spelling of 212343347 in words is "two hundred twelve million, three hundred forty-three thousand, three hundred forty-seven".