343222457 has 2 divisors, whose sum is σ = 343222458. Its totient is φ = 343222456.

The previous prime is 343222447. The next prime is 343222459. The reversal of 343222457 is 754222343.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 198838201 + 144384256 = 14101^2 + 12016^2 .

It is a cyclic number.

It is not a de Polignac number, because 343222457 - 2²⁴ = 326445241 is a prime.

Together with 343222459, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (343222459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 171611228 + 171611229.

It is an arithmetic number, because the mean of its divisors is an integer number (171611229).

Almost surely, 2^343222457 is an apocalyptic number.

It is an amenable number.

343222457 is a deficient number, since it is larger than the sum of its proper divisors (1).

343222457 is an equidigital number, since it uses as much as digits as its factorization.

343222457 is an evil number, because the sum of its binary digits is even.

The product of its digits is 40320, while the sum is 32.

The square root of 343222457 is about 18526.2639784712. The cubic root of 343222457 is about 700.1512985884.

The spelling of 343222457 in words is "three hundred forty-three million, two hundred twenty-two thousand, four hundred fifty-seven".