343336649 has 2 divisors, whose sum is σ = 343336650. Its totient is φ = 343336648.

The previous prime is 343336627. The next prime is 343336661. The reversal of 343336649 is 946633343.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 341991049 + 1345600 = 18493^2 + 1160^2 .

It is a cyclic number.

It is not a de Polignac number, because 343336649 - 2⁸ = 343336393 is a prime.

It is not a weakly prime, because it can be changed into another prime (343336619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 171668324 + 171668325.

It is an arithmetic number, because the mean of its divisors is an integer number (171668325).

Almost surely, 2^343336649 is an apocalyptic number.

It is an amenable number.

343336649 is a deficient number, since it is larger than the sum of its proper divisors (1).

343336649 is an equidigital number, since it uses as much as digits as its factorization.

343336649 is an evil number, because the sum of its binary digits is even.

The product of its digits is 419904, while the sum is 41.

The square root of 343336649 is about 18529.3456171555. The cubic root of 343336649 is about 700.2289380418.

The spelling of 343336649 in words is "three hundred forty-three million, three hundred thirty-six thousand, six hundred forty-nine".