343294561 has 2 divisors, whose sum is σ = 343294562. Its totient is φ = 343294560.

The previous prime is 343294537. The next prime is 343294607. The reversal of 343294561 is 165492343.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 175721536 + 167573025 = 13256^2 + 12945^2 .

It is a cyclic number.

It is not a de Polignac number, because 343294561 - 2⁵ = 343294529 is a prime.

It is a super-2 number, since 2×343294561² = 235702311224365442, which contains 22 as substring.

It is a Chen prime.

It is an alternating number because its digits alternate between odd and even.

It is a self number, because there is not a number n which added to its sum of digits gives 343294561.

It is not a weakly prime, because it can be changed into another prime (343294531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 171647280 + 171647281.

It is an arithmetic number, because the mean of its divisors is an integer number (171647281).

Almost surely, 2^343294561 is an apocalyptic number.

It is an amenable number.

343294561 is a deficient number, since it is larger than the sum of its proper divisors (1).

343294561 is an equidigital number, since it uses as much as digits as its factorization.

343294561 is an evil number, because the sum of its binary digits is even.

The product of its digits is 77760, while the sum is 37.

The square root of 343294561 is about 18528.2098703571. The cubic root of 343294561 is about 700.2003242989.

The spelling of 343294561 in words is "three hundred forty-three million, two hundred ninety-four thousand, five hundred sixty-one".