343368409 has 2 divisors, whose sum is σ = 343368410. Its totient is φ = 343368408.

The previous prime is 343368391. The next prime is 343368461. The reversal of 343368409 is 904863343.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 190302025 + 153066384 = 13795^2 + 12372^2 .

It is a cyclic number.

It is not a de Polignac number, because 343368409 - 2²⁷ = 209150681 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (343368469) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 171684204 + 171684205.

It is an arithmetic number, because the mean of its divisors is an integer number (171684205).

Almost surely, 2^343368409 is an apocalyptic number.

It is an amenable number.

343368409 is a deficient number, since it is larger than the sum of its proper divisors (1).

343368409 is an equidigital number, since it uses as much as digits as its factorization.

343368409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 186624, while the sum is 40.

The square root of 343368409 is about 18530.2026162695. The cubic root of 343368409 is about 700.2505286929.

The spelling of 343368409 in words is "three hundred forty-three million, three hundred sixty-eight thousand, four hundred nine".