43630343 has 2 divisors, whose sum is σ = 43630344. Its totient is φ = 43630342.

The previous prime is 43630339. The next prime is 43630453. The reversal of 43630343 is 34303634.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 43630343 - 2² = 43630339 is a prime.

It is a Sophie Germain prime.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43630243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21815171 + 21815172.

It is an arithmetic number, because the mean of its divisors is an integer number (21815172).

Almost surely, 2^43630343 is an apocalyptic number.

43630343 is a deficient number, since it is larger than the sum of its proper divisors (1).

43630343 is an equidigital number, since it uses as much as digits as its factorization.

43630343 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7776, while the sum is 26.

The square root of 43630343 is about 6605.3268654927. The cubic root of 43630343 is about 352.0434019098.

Adding to 43630343 its reverse (34303634), we get a palindrome (77933977).

The spelling of 43630343 in words is "forty-three million, six hundred thirty thousand, three hundred forty-three".