43243349 has 2 divisors, whose sum is σ = 43243350. Its totient is φ = 43243348.

The previous prime is 43243313. The next prime is 43243351. The reversal of 43243349 is 94334234.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 33849124 + 9394225 = 5818^2 + 3065^2 .

It is a cyclic number.

It is not a de Polignac number, because 43243349 - 2⁸ = 43243093 is a prime.

Together with 43243351, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43243399) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21621674 + 21621675.

It is an arithmetic number, because the mean of its divisors is an integer number (21621675).

Almost surely, 2^43243349 is an apocalyptic number.

It is an amenable number.

43243349 is a deficient number, since it is larger than the sum of its proper divisors (1).

43243349 is an equidigital number, since it uses as much as digits as its factorization.

43243349 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 31104, while the sum is 32.

The square root of 43243349 is about 6575.9675333748. The cubic root of 43243349 is about 350.9994534668. Note that the first 3 decimals are identical.

The spelling of 43243349 in words is "forty-three million, two hundred forty-three thousand, three hundred forty-nine".