343489297 has 2 divisors, whose sum is σ = 343489298. Its totient is φ = 343489296.

The previous prime is 343489283. The next prime is 343489303. The reversal of 343489297 is 792984343.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 220700736 + 122788561 = 14856^2 + 11081^2 .

It is an emirp because it is prime and its reverse (792984343) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 343489297 - 2⁷ = 343489169 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 343489297.

It is not a weakly prime, because it can be changed into another prime (343489217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 171744648 + 171744649.

It is an arithmetic number, because the mean of its divisors is an integer number (171744649).

Almost surely, 2^343489297 is an apocalyptic number.

It is an amenable number.

343489297 is a deficient number, since it is larger than the sum of its proper divisors (1).

343489297 is an equidigital number, since it uses as much as digits as its factorization.

343489297 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1306368, while the sum is 49.

The square root of 343489297 is about 18533.4642471396. The cubic root of 343489297 is about 700.3326969523.

The spelling of 343489297 in words is "three hundred forty-three million, four hundred eighty-nine thousand, two hundred ninety-seven".