343543258997 has 2 divisors, whose sum is σ = 343543258998. Its totient is φ = 343543258996.

The previous prime is 343543258963. The next prime is 343543259009. The reversal of 343543258997 is 799852345343.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 185277732721 + 158265526276 = 430439^2 + 397826^2 .

It is a cyclic number.

It is not a de Polignac number, because 343543258997 - 2⁸ = 343543258741 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (343543258297) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 171771629498 + 171771629499.

It is an arithmetic number, because the mean of its divisors is an integer number (171771629499).

Almost surely, 2^343543258997 is an apocalyptic number.

It is an amenable number.

343543258997 is a deficient number, since it is larger than the sum of its proper divisors (1).

343543258997 is an equidigital number, since it uses as much as digits as its factorization.

343543258997 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 97977600, while the sum is 62.

The spelling of 343543258997 in words is "three hundred forty-three billion, five hundred forty-three million, two hundred fifty-eight thousand, nine hundred ninety-seven".