343946377 has 2 divisors, whose sum is σ = 343946378. Its totient is φ = 343946376.

The previous prime is 343946371. The next prime is 343946381. The reversal of 343946377 is 773649343.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 176916601 + 167029776 = 13301^2 + 12924^2 .

It is a cyclic number.

It is not a de Polignac number, because 343946377 - 2¹¹ = 343944329 is a prime.

It is a super-2 number, since 2×343946377² = 236598220502852258, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (343946371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 171973188 + 171973189.

It is an arithmetic number, because the mean of its divisors is an integer number (171973189).

Almost surely, 2^343946377 is an apocalyptic number.

It is an amenable number.

343946377 is a deficient number, since it is larger than the sum of its proper divisors (1).

343946377 is an equidigital number, since it uses as much as digits as its factorization.

343946377 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1143072, while the sum is 46.

The square root of 343946377 is about 18545.7913554531. The cubic root of 343946377 is about 700.6432026827.

The spelling of 343946377 in words is "three hundred forty-three million, nine hundred forty-six thousand, three hundred seventy-seven".