343538957 has 2 divisors, whose sum is σ = 343538958. Its totient is φ = 343538956.

The previous prime is 343538953. The next prime is 343538977. The reversal of 343538957 is 759835343.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 242456041 + 101082916 = 15571^2 + 10054^2 .

It is a cyclic number.

It is not a de Polignac number, because 343538957 - 2² = 343538953 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (343538953) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 171769478 + 171769479.

It is an arithmetic number, because the mean of its divisors is an integer number (171769479).

Almost surely, 2^343538957 is an apocalyptic number.

It is an amenable number.

343538957 is a deficient number, since it is larger than the sum of its proper divisors (1).

343538957 is an equidigital number, since it uses as much as digits as its factorization.

343538957 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1360800, while the sum is 47.

The square root of 343538957 is about 18534.8039374578. The cubic root of 343538957 is about 700.3664455496.

The spelling of 343538957 in words is "three hundred forty-three million, five hundred thirty-eight thousand, nine hundred fifty-seven".