343382321 has 2 divisors, whose sum is σ = 343382322. Its totient is φ = 343382320.

The previous prime is 343382317. The next prime is 343382353. The reversal of 343382321 is 123283343.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 339996721 + 3385600 = 18439^2 + 1840^2 .

It is a cyclic number.

It is not a de Polignac number, because 343382321 - 2² = 343382317 is a prime.

It is a super-2 number, since 2×343382321² = 235822836750694082, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (343385321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 171691160 + 171691161.

It is an arithmetic number, because the mean of its divisors is an integer number (171691161).

Almost surely, 2^343382321 is an apocalyptic number.

It is an amenable number.

343382321 is a deficient number, since it is larger than the sum of its proper divisors (1).

343382321 is an equidigital number, since it uses as much as digits as its factorization.

343382321 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10368, while the sum is 29.

The square root of 343382321 is about 18530.5779996200. The cubic root of 343382321 is about 700.2599857401.

The spelling of 343382321 in words is "three hundred forty-three million, three hundred eighty-two thousand, three hundred twenty-one".