343743623 has 2 divisors, whose sum is σ = 343743624. Its totient is φ = 343743622.

The previous prime is 343743613. The next prime is 343743643. The reversal of 343743623 is 326347343.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 343743623 - 2⁶ = 343743559 is a prime.

It is a super-2 number, since 2×343743623² = 236319356706332258, which contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (343743613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 171871811 + 171871812.

It is an arithmetic number, because the mean of its divisors is an integer number (171871812).

Almost surely, 2^343743623 is an apocalyptic number.

343743623 is a deficient number, since it is larger than the sum of its proper divisors (1).

343743623 is an equidigital number, since it uses as much as digits as its factorization.

343743623 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 108864, while the sum is 35.

The square root of 343743623 is about 18540.3242420406. The cubic root of 343743623 is about 700.5055008541.

The spelling of 343743623 in words is "three hundred forty-three million, seven hundred forty-three thousand, six hundred twenty-three".